[Bug]: files/dav: uploading to a folder containing double quotes fails

⚠️ This issue respects the following points: ⚠️

• This is a bug, not a question or a configuration/webserver/proxy issue.
• This issue is not already reported on Github OR Nextcloud Community Forum (I've searched it).
• Nextcloud Server is up to date. See Maintenance and Release Schedule for supported versions.
• I agree to follow Nextcloud's Code of Conduct.

Bug description

Uploading a file to a folder via the files app fails (and in a non-comprehensible way), if the folder to upload to contains a double quote ("):

1. Start upload, progress bar is shown
2. Server logs OCA\DAV\Connector\Sabre\Exception\FileLocked: "<filename>.upload.part is locked"
3. 0% progress remains, remaining time estimation increases a few times
4. After roughly 1 minute, the client aborts the upload attempt, shows "unkown error, HTTP 502"
5. Server logs Sabre\DAV\Exception\BadRequest: "expected file size nnnnnnn, but only 40960 bytes read and written"

Steps to reproduce

1. Open the files app and create a folder named e.g. "foobar" (including the double quotes).
2. Browse to the folder and attempt to upload a file.

Expected behavior

In this case, I'd expect the file upload to succeed.

If, however, a file upload fails for whatever (permanent) reason on the server-side, the server shall let the client know incl. the reason, and the client shall immediately abort and show the reason to the user.
(But maybe the issue here is purely client-side.)

Nextcloud Server version

33

Operating system

Debian/Ubuntu

PHP engine version

PHP 8.4

Web server

Apache (supported)

Database engine version

MariaDB

Is this bug present after an update or on a fresh install?

None

Are you using the Nextcloud Server Encryption module?

Encryption is Disabled

What user-backends are you using?

• Default user-backend (database)
• LDAP/ Active Directory
• SSO - SAML
• Other

Configuration report

{
    "system": {
        "instanceid": "***REMOVED SENSITIVE VALUE***",
        "passwordsalt": "***REMOVED SENSITIVE VALUE***",
        "secret": "***REMOVED SENSITIVE VALUE***",
        "trusted_domains": [
            "localhost",
            "***REMOVED SENSITIVE VALUE***"
        ],
        "datadirectory": "***REMOVED SENSITIVE VALUE***",
        "skeletondirectory": "\/var\/www\/html\/nextcloud\/default_folders",
        "dbtype": "mysql",
        "version": "33.0.6.2",
        "dbname": "***REMOVED SENSITIVE VALUE***",
        "dbhost": "***REMOVED SENSITIVE VALUE***",
        "dbport": "",
        "dbtableprefix": "oc_",
        "mysql.utf8mb4": true,
        "dbuser": "***REMOVED SENSITIVE VALUE***",
        "dbpassword": "***REMOVED SENSITIVE VALUE***",
        "installed": true,
        "ldapIgnoreNamingRules": false,
        "ldapProviderFactory": "OCA\\User_LDAP\\LDAPProviderFactory",
        "maintenance": false,
        "logfile": "\/var\/log\/nextcloud\/nextcloud.log",
        "loglevel": 1,
        "logdateformat": "F d, Y H:i:s",
        "trusted_proxies": "***REMOVED SENSITIVE VALUE***",
        "overwriteprotocol": "https",
        "overwrite.cli.url": "***REMOVED SENSITIVE VALUE***",
        "htaccess.RewriteBase": "\/",
        "default_language": "de",
        "force_language": "de",
        "default_locale": "de_DE",
        "force_locale": "de_DE",
        "encryption.legacy_format_support": false,
        "encryption.key_storage_migrated": false,
        "default_phone_region": "DE",
        "mail_smtpmode": "smtp",
        "mail_smtpauthtype": "LOGIN",
        "mail_sendmailmode": "smtp",
        "mail_smtpauth": 1,
        "mail_smtpname": "***REMOVED SENSITIVE VALUE***",
        "mail_smtppassword": "***REMOVED SENSITIVE VALUE***",
        "mail_smtphost": "***REMOVED SENSITIVE VALUE***",
        "mail_from_address": "***REMOVED SENSITIVE VALUE***",
        "mail_domain": "***REMOVED SENSITIVE VALUE***",
        "mail_smtpport": "465",
        "mail_smtpsecure": "ssl",
        "theme": "",
        "maintenance_window_start": 1
    }
}

List of activated Apps

Enabled:
  - activity: 6.0.0
  - admin_audit: 1.23.0
  - app_api: 33.0.0
  - bruteforcesettings: 6.0.0
  - calendar: 6.5.0
  - circles: 33.0.0
  - cloud_federation_api: 1.17.0
  - contacts: 8.7.2
  - contactsinteraction: 1.14.1
  - dav: 1.36.0
  - encryption: 2.21.0
  - federatedfilesharing: 1.23.0
  - federation: 1.23.0
  - files: 2.5.0
  - files_automatedtagging: 4.0.0
  - files_downloadlimit: 5.1.0
  - files_pdfviewer: 6.0.0
  - files_reminders: 1.6.0
  - files_retention: 4.0.1
  - files_sharing: 1.25.2
  - files_trashbin: 1.23.0
  - files_versions: 1.26.0
  - flow_notifications: 4.0.0
  - forms: 5.3.2
  - groupfolders: 21.0.9
  - logreader: 6.0.0
  - lookup_server_connector: 1.21.0
  - mail: 5.10.5
  - nextcloud_announcements: 5.0.0
  - notifications: 6.0.0
  - oauth2: 1.21.0
  - password_policy: 5.0.0
  - privacy: 5.0.0
  - profile: 1.2.0
  - provisioning_api: 1.23.0
  - recommendations: 6.0.0
  - related_resources: 4.0.0
  - secrets: 3.0.3
  - serverinfo: 5.0.0
  - settings: 1.16.0
  - sharebymail: 1.23.0
  - spreed: 23.0.7
  - support: 5.0.0
  - survey_client: 5.0.0
  - suspicious_login: 11.0.0
  - systemtags: 1.23.0
  - text: 7.0.1
  - theming: 2.8.0
  - twofactor_backupcodes: 1.22.0
  - twofactor_totp: 15.0.0
  - updatenotification: 1.23.0
  - user_ldap: 1.24.0
  - user_status: 1.13.0
  - viewer: 6.0.0
  - weather_status: 1.13.0
  - webhook_listeners: 1.5.0
  - workflowengine: 2.15.0
Disabled:
  - announcementcenter: 7.4.1 (installed 7.4.1)
  - comments: 1.23.0 (installed 1.8.0)
  - dashboard: 7.13.0 (installed 7.10.0)
  - deck: 1.17.4 (installed 1.17.4)
  - files_external: 1.25.1
  - firstrunwizard: 6.0.0 (installed 2.7.0)
  - photos: 6.0.0 (installed 2.5.0)
  - polls: 9.1.4 (installed 9.1.4)
  - tables: 2.2.0 (installed 2.2.0)
  - testing: 1.23.0
  - twofactor_nextcloud_notification: 7.0.0
  - workflow_script: 4.0.1 (installed 4.0.1)

Nextcloud Signing status

Nextcloud Logs

{
    "reqId": "D0Gd7eNZJNNKTnnD2nTt",
    "level": 1,
    "time": "July 06, 2026 15:08:03",
    "remoteAddr": "***REMOVED SENSITIVE VALUE***",
    "user": "***USER-ID***",
    "app": "no app in context",
    "method": "PUT",
    "url": "/remote.php/dav/files/***USER-ID***/darf%20der%20%22so%22%20hei%C3%9Fen/20230404_105305.jpg",
    "scriptName": "/remote.php",
    "message": "Uncaught exception",
    "userAgent": "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/150.0.0.0 Safari/537.36 Edg/150.0.0.0",
    "version": "33.0.6.2",
    "exception": {
        "Exception": "OCA\\DAV\\Connector\\Sabre\\Exception\\FileLocked",
        "Message": "\"/darf der \"so\" hei\u00dfen/20230404_105305.jpg.upload.part\" is locked",
        "Code": 0,
        "Trace": [
            {
                "file": "/var/www/html/nextcloud/3rdparty/sabre/dav/lib/DAV/Server.php",
                "line": 1098,
                "function": "createFile",
                "class": "OCA\\DAV\\Connector\\Sabre\\Directory",
                "type": "->",
                "args": [
                    "*** sensitive parameters replaced ***"
                ]
            },
            {
                "file": "/var/www/html/nextcloud/3rdparty/sabre/dav/lib/DAV/CorePlugin.php",
                "line": 504,
                "function": "createFile",
                "class": "Sabre\\DAV\\Server",
                "type": "->",
                "args": [
                    "*** sensitive parameters replaced ***"
                ]
            },
            {
                "file": "/var/www/html/nextcloud/3rdparty/sabre/event/lib/WildcardEmitterTrait.php",
                "line": 89,
                "function": "httpPut",
                "class": "Sabre\\DAV\\CorePlugin",
                "type": "->"
            },
            {
                "file": "/var/www/html/nextcloud/3rdparty/sabre/dav/lib/DAV/Server.php",
                "line": 472,
                "function": "emit",
                "class": "Sabre\\DAV\\Server",
                "type": "->"
            },
            {
                "file": "/var/www/html/nextcloud/apps/dav/lib/Connector/Sabre/Server.php",
                "line": 212,
                "function": "invokeMethod",
                "class": "Sabre\\DAV\\Server",
                "type": "->"
            },
            {
                "file": "/var/www/html/nextcloud/apps/dav/lib/Server.php",
                "line": 428,
                "function": "start",
                "class": "OCA\\DAV\\Connector\\Sabre\\Server",
                "type": "->"
            },
            {
                "file": "/var/www/html/nextcloud/apps/dav/appinfo/v2/remote.php",
                "line": 25,
                "function": "exec",
                "class": "OCA\\DAV\\Server",
                "type": "->"
            },
            {
                "file": "/var/www/html/nextcloud/remote.php",
                "line": 151,
                "args": [
                    "/var/www/html/nextcloud/apps/dav/appinfo/v2/remote.php"
                ],
                "function": "require_once"
            }
        ],
        "File": "/var/www/html/nextcloud/apps/dav/lib/Connector/Sabre/Directory.php",
        "Line": 138,
        "Previous": {
            "Exception": "OCP\\Lock\\LockedException",
            "Message": "\"/darf der \"so\" hei\u00dfen/20230404_105305.jpg.upload.part\" is locked",
            "Code": 0,
            "Trace": [
                {
                    "file": "/var/www/html/nextcloud/lib/private/Files/View.php",
                    "line": 2161,
                    "function": "lockPath",
                    "class": "OC\\Files\\View",
                    "type": "->"
                },
                {
                    "file": "/var/www/html/nextcloud/apps/dav/lib/Connector/Sabre/Directory.php",
                    "line": 124,
                    "function": "lockFile",
                    "class": "OC\\Files\\View",
                    "type": "->"
                },
                {
                    "file": "/var/www/html/nextcloud/3rdparty/sabre/dav/lib/DAV/Server.php",
                    "line": 1098,
                    "function": "createFile",
                    "class": "OCA\\DAV\\Connector\\Sabre\\Directory",
                    "type": "->",
                    "args": [
                        "*** sensitive parameters replaced ***"
                    ]
                },
                {
                    "file": "/var/www/html/nextcloud/3rdparty/sabre/dav/lib/DAV/CorePlugin.php",
                    "line": 504,
                    "function": "createFile",
                    "class": "Sabre\\DAV\\Server",
                    "type": "->",
                    "args": [
                        "*** sensitive parameters replaced ***"
                    ]
                },
                {
                    "file": "/var/www/html/nextcloud/3rdparty/sabre/event/lib/WildcardEmitterTrait.php",
                    "line": 89,
                    "function": "httpPut",
                    "class": "Sabre\\DAV\\CorePlugin",
                    "type": "->"
                },
                {
                    "file": "/var/www/html/nextcloud/3rdparty/sabre/dav/lib/DAV/Server.php",
                    "line": 472,
                    "function": "emit",
                    "class": "Sabre\\DAV\\Server",
                    "type": "->"
                },
                {
                    "file": "/var/www/html/nextcloud/apps/dav/lib/Connector/Sabre/Server.php",
                    "line": 212,
                    "function": "invokeMethod",
                    "class": "Sabre\\DAV\\Server",
                    "type": "->"
                },
                {
                    "file": "/var/www/html/nextcloud/apps/dav/lib/Server.php",
                    "line": 428,
                    "function": "start",
                    "class": "OCA\\DAV\\Connector\\Sabre\\Server",
                    "type": "->"
                },
                {
                    "file": "/var/www/html/nextcloud/apps/dav/appinfo/v2/remote.php",
                    "line": 25,
                    "function": "exec",
                    "class": "OCA\\DAV\\Server",
                    "type": "->"
                },
                {
                    "file": "/var/www/html/nextcloud/remote.php",
                    "line": 151,
                    "args": [
                        "/var/www/html/nextcloud/apps/dav/appinfo/v2/remote.php"
                    ],
                    "function": "require_once"
                }
            ],
            "File": "/var/www/html/nextcloud/lib/private/Files/View.php",
            "Line": 2064,
            "Previous": {
                "Exception": "OCP\\Lock\\LockedException",
                "Message": "\"files/2728ddc06ed93ec71d59c86bc5db169d\"(\"files/darf der \"so\" hei\u00dfen/20230404_105305.jpg.upload.part\") is locked",
                "Code": 0,
                "Trace": [
                    {
                        "file": "/var/www/html/nextcloud/lib/private/Files/Storage/Wrapper/Wrapper.php",
                        "line": 306,
                        "function": "acquireLock",
                        "class": "OC\\Files\\Storage\\Common",
                        "type": "->"
                    },
                    {
                        "file": "/var/www/html/nextcloud/lib/private/Files/Storage/Wrapper/Wrapper.php",
                        "line": 306,
                        "function": "acquireLock",
                        "class": "OC\\Files\\Storage\\Wrapper\\Wrapper",
                        "type": "->"
                    },
                    {
                        "file": "/var/www/html/nextcloud/lib/private/Files/Storage/Wrapper/Wrapper.php",
                        "line": 306,
                        "function": "acquireLock",
                        "class": "OC\\Files\\Storage\\Wrapper\\Wrapper",
                        "type": "->"
                    },
                    {
                        "file": "/var/www/html/nextcloud/lib/private/Files/View.php",
                        "line": 2056,
                        "function": "acquireLock",
                        "class": "OC\\Files\\Storage\\Wrapper\\Wrapper",
                        "type": "->"
                    },
                    {
                        "file": "/var/www/html/nextcloud/lib/private/Files/View.php",
                        "line": 2161,
                        "function": "lockPath",
                        "class": "OC\\Files\\View",
                        "type": "->"
                    },
                    {
                        "file": "/var/www/html/nextcloud/apps/dav/lib/Connector/Sabre/Directory.php",
                        "line": 124,
                        "function": "lockFile",
                        "class": "OC\\Files\\View",
                        "type": "->"
                    },
                    {
                        "file": "/var/www/html/nextcloud/3rdparty/sabre/dav/lib/DAV/Server.php",
                        "line": 1098,
                        "function": "createFile",
                        "class": "OCA\\DAV\\Connector\\Sabre\\Directory",
                        "type": "->",
                        "args": [
                            "*** sensitive parameters replaced ***"
                        ]
                    },
                    {
                        "file": "/var/www/html/nextcloud/3rdparty/sabre/dav/lib/DAV/CorePlugin.php",
                        "line": 504,
                        "function": "createFile",
                        "class": "Sabre\\DAV\\Server",
                        "type": "->",
                        "args": [
                            "*** sensitive parameters replaced ***"
                        ]
                    },
                    {
                        "file": "/var/www/html/nextcloud/3rdparty/sabre/event/lib/WildcardEmitterTrait.php",
                        "line": 89,
                        "function": "httpPut",
                        "class": "Sabre\\DAV\\CorePlugin",
                        "type": "->"
                    },
                    {
                        "file": "/var/www/html/nextcloud/3rdparty/sabre/dav/lib/DAV/Server.php",
                        "line": 472,
                        "function": "emit",
                        "class": "Sabre\\DAV\\Server",
                        "type": "->"
                    },
                    {
                        "file": "/var/www/html/nextcloud/apps/dav/lib/Connector/Sabre/Server.php",
                        "line": 212,
                        "function": "invokeMethod",
                        "class": "Sabre\\DAV\\Server",
                        "type": "->"
                    },
                    {
                        "file": "/var/www/html/nextcloud/apps/dav/lib/Server.php",
                        "line": 428,
                        "function": "start",
                        "class": "OCA\\DAV\\Connector\\Sabre\\Server",
                        "type": "->"
                    },
                    {
                        "file": "/var/www/html/nextcloud/apps/dav/appinfo/v2/remote.php",
                        "line": 25,
                        "function": "exec",
                        "class": "OCA\\DAV\\Server",
                        "type": "->"
                    },
                    {
                        "file": "/var/www/html/nextcloud/remote.php",
                        "line": 151,
                        "args": [
                            "/var/www/html/nextcloud/apps/dav/appinfo/v2/remote.php"
                        ],
                        "function": "require_once"
                    }
                ],
                "File": "/var/www/html/nextcloud/lib/private/Files/Storage/Common.php",
                "Line": 650,
                "Previous": {
                    "Exception": "OCP\\Lock\\LockedException",
                    "Message": "\"files/2728ddc06ed93ec71d59c86bc5db169d\"(\"home::***USER-ID***::files/darf der \"so\" hei\u00dfen/20230404_105305.jpg.upload.part\") is locked",
                    "Code": 0,
                    "Trace": [
                        {
                            "file": "/var/www/html/nextcloud/lib/private/Files/Storage/Common.php",
                            "line": 648,
                            "function": "acquireLock",
                            "class": "OC\\Lock\\DBLockingProvider",
                            "type": "->"
                        },
                        {
                            "file": "/var/www/html/nextcloud/lib/private/Files/Storage/Wrapper/Wrapper.php",
                            "line": 306,
                            "function": "acquireLock",
                            "class": "OC\\Files\\Storage\\Common",
                            "type": "->"
                        },
                        {
                            "file": "/var/www/html/nextcloud/lib/private/Files/Storage/Wrapper/Wrapper.php",
                            "line": 306,
                            "function": "acquireLock",
                            "class": "OC\\Files\\Storage\\Wrapper\\Wrapper",
                            "type": "->"
                        },
                        {
                            "file": "/var/www/html/nextcloud/lib/private/Files/Storage/Wrapper/Wrapper.php",
                            "line": 306,
                            "function": "acquireLock",
                            "class": "OC\\Files\\Storage\\Wrapper\\Wrapper",
                            "type": "->"
                        },
                        {
                            "file": "/var/www/html/nextcloud/lib/private/Files/View.php",
                            "line": 2056,
                            "function": "acquireLock",
                            "class": "OC\\Files\\Storage\\Wrapper\\Wrapper",
                            "type": "->"
                        },
                        {
                            "file": "/var/www/html/nextcloud/lib/private/Files/View.php",
                            "line": 2161,
                            "function": "lockPath",
                            "class": "OC\\Files\\View",
                            "type": "->"
                        },
                        {
                            "file": "/var/www/html/nextcloud/apps/dav/lib/Connector/Sabre/Directory.php",
                            "line": 124,
                            "function": "lockFile",
                            "class": "OC\\Files\\View",
                            "type": "->"
                        },
                        {
                            "file": "/var/www/html/nextcloud/3rdparty/sabre/dav/lib/DAV/Server.php",
                            "line": 1098,
                            "function": "createFile",
                            "class": "OCA\\DAV\\Connector\\Sabre\\Directory",
                            "type": "->",
                            "args": [
                                "*** sensitive parameters replaced ***"
                            ]
                        },
                        {
                            "file": "/var/www/html/nextcloud/3rdparty/sabre/dav/lib/DAV/CorePlugin.php",
                            "line": 504,
                            "function": "createFile",
                            "class": "Sabre\\DAV\\Server",
                            "type": "->",
                            "args": [
                                "*** sensitive parameters replaced ***"
                            ]
                        },
                        {
                            "file": "/var/www/html/nextcloud/3rdparty/sabre/event/lib/WildcardEmitterTrait.php",
                            "line": 89,
                            "function": "httpPut",
                            "class": "Sabre\\DAV\\CorePlugin",
                            "type": "->"
                        },
                        {
                            "file": "/var/www/html/nextcloud/3rdparty/sabre/dav/lib/DAV/Server.php",
                            "line": 472,
                            "function": "emit",
                            "class": "Sabre\\DAV\\Server",
                            "type": "->"
                        },
                        {
                            "file": "/var/www/html/nextcloud/apps/dav/lib/Connector/Sabre/Server.php",
                            "line": 212,
                            "function": "invokeMethod",
                            "class": "Sabre\\DAV\\Server",
                            "type": "->"
                        },
                        {
                            "file": "/var/www/html/nextcloud/apps/dav/lib/Server.php",
                            "line": 428,
                            "function": "start",
                            "class": "OCA\\DAV\\Connector\\Sabre\\Server",
                            "type": "->"
                        },
                        {
                            "file": "/var/www/html/nextcloud/apps/dav/appinfo/v2/remote.php",
                            "line": 25,
                            "function": "exec",
                            "class": "OCA\\DAV\\Server",
                            "type": "->"
                        },
                        {
                            "file": "/var/www/html/nextcloud/remote.php",
                            "line": 151,
                            "args": [
                                "/var/www/html/nextcloud/apps/dav/appinfo/v2/remote.php"
                            ],
                            "function": "require_once"
                        }
                    ],
                    "File": "/var/www/html/nextcloud/lib/private/Lock/DBLockingProvider.php",
                    "Line": 139
                }
            }
        },
        "message": "Uncaught exception",
        "exception": "{\"class\":\"OCA\\DAV\\Connector\\Sabre\\Exception\\FileLocked\",\"message\":\"\\\"/darf der \\\"so\\\" hei\u00dfen/20230404_105305.jpg.upload.part\\\" is locked\",\"code\":0,\"file\":\"/var/www/html/nextcloud/apps/dav/lib/Connector/Sabre/Directory.php:138\",\"trace\":\"#0 /var/www/html/nextcloud/3rdparty/sabre/dav/lib/DAV/Server.php(1098): OCA\\DAV\\Connector\\Sabre\\Directory->createFile()\\n#1 /var/www/html/nextcloud/3rdparty/sabre/dav/lib/DAV/CorePlugin.php(504): Sabre\\DAV\\Server->createFile()\\n#2 /var/www/html/nextcloud/3rdparty/sabre/event/lib/WildcardEmitterTrait.php(89): Sabre\\DAV\\CorePlugin->httpPut()\\n#3 /var/www/html/nextcloud/3rdparty/sabre/dav/lib/DAV/Server.php(472): Sabre\\DAV\\Server->emit()\\n#4 /var/www/html/nextcloud/apps/dav/lib/Connector/Sabre/Server.php(212): Sabre\\DAV\\Server->invokeMethod()\\n#5 /var/www/html/nextcloud/apps/dav/lib/Server.php(428): OCA\\DAV\\Connector\\Sabre\\Server->start()\\n#6 /var/www/html/nextcloud/apps/dav/appinfo/v2/remote.php(25): OCA\\DAV\\Server->exec()\\n#7 /var/www/html/nextcloud/remote.php(151): require_once('...')\\n#8 {main}\",\"previous\":{\"class\":\"OCP\\Lock\\LockedException\",\"message\":\"\\\"/darf der \\\"so\\\" hei\u00dfen/20230404_105305.jpg.upload.part\\\" is locked\",\"code\":0,\"file\":\"/var/www/html/nextcloud/lib/private/Files/View.php:2064\",\"trace\":\"#0 /var/www/html/nextcloud/lib/private/Files/View.php(2161): OC\\Files\\View->lockPath()\\n#1 /var/www/html/nextcloud/apps/dav/lib/Connector/Sabre/Directory.php(124): OC\\Files\\View->lockFile()\\n#2 /var/www/html/nextcloud/3rdparty/sabre/dav/lib/DAV/Server.php(1098): OCA\\DAV\\Connector\\Sabre\\Directory->createFile()\\n#3 /var/www/html/nextcloud/3rdparty/sabre/dav/lib/DAV/CorePlugin.php(504): Sabre\\DAV\\Server->createFile()\\n#4 /var/www/html/nextcloud/3rdparty/sabre/event/lib/WildcardEmitterTrait.php(89): Sabre\\DAV\\CorePlugin->httpPut()\\n#5 /var/www/html/nextcloud/3rdparty/sabre/dav/lib/DAV/Server.php(472): Sabre\\DAV\\Server->emit()\\n#6 /var/www/html/nextcloud/apps/dav/lib/Connector/Sabre/Server.php(212): Sabre\\DAV\\Server->invokeMethod()\\n#7 /var/www/html/nextcloud/apps/dav/lib/Server.php(428): OCA\\DAV\\Connector\\Sabre\\Server->start()\\n#8 /var/www/html/nextcloud/apps/dav/appinfo/v2/remote.php(25): OCA\\DAV\\Server->exec()\\n#9 /var/www/html/nextcloud/remote.php(151): require_once('...')\\n#10 {main}\",\"previous\":{\"class\":\"OCP\\Lock\\LockedException\",\"message\":\"\\\"files/2728ddc06ed93ec71d59c86bc5db169d\\\"(\\\"files/darf der \\\"so\\\" hei\u00dfen/20230404_105305.jpg.upload.part\\\") is locked\",\"code\":0,\"file\":\"/var/www/html/nextcloud/lib/private/Files/Storage/Common.php:650\",\"trace\":\"#0 /var/www/html/nextcloud/lib/private/Files/Storage/Wrapper/Wrapper.php(306): OC\\Files\\Storage\\Common->acquireLock()\\n#1 /var/www/html/nextcloud/lib/private/Files/Storage/Wrapper/Wrapper.php(306): OC\\Files\\Storage\\Wrapper\\Wrapper->acquireLock()\\n#2 /var/www/html/nextcloud/lib/private/Files/Storage/Wrapper/Wrapper.php(306): OC\\Files\\Storage\\Wrapper\\Wrapper->acquireLock()\\n#3 /var/www/html/nextcloud/lib/private/Files/View.php(2056): OC\\Files\\Storage\\Wrapper\\Wrapper->acquireLock()\\n#4 /var/www/html/nextcloud/lib/private/Files/View.php(2161): OC\\Files\\View->lockPath()\\n#5 /var/www/html/nextcloud/apps/dav/lib/Connector/Sabre/Directory.php(124): OC\\Files\\View->lockFile()\\n#6 /var/www/html/nextcloud/3rdparty/sabre/dav/lib/DAV/Server.php(1098): OCA\\DAV\\Connector\\Sabre\\Directory->createFile()\\n#7 /var/www/html/nextcloud/3rdparty/sabre/dav/lib/DAV/CorePlugin.php(504): Sabre\\DAV\\Server->createFile()\\n#8 /var/www/html/nextcloud/3rdparty/sabre/event/lib/WildcardEmitterTrait.php(89): Sabre\\DAV\\CorePlugin->httpPut()\\n#9 /var/www/html/nextcloud/3rdparty/sabre/dav/lib/DAV/Server.php(472): Sabre\\DAV\\Server->emit()\\n#10 /var/www/html/nextcloud/apps/dav/lib/Connector/Sabre/Server.php(212): Sabre\\DAV\\Server->invokeMethod()\\n#11 /var/www/html/nextcloud/apps/dav/lib/Server.php(428): OCA\\DAV\\Connector\\Sabre\\Server->start()\\n#12 /var/www/html/nextcloud/apps/dav/appinfo/v2/remote.php(25): OCA\\DAV\\Server->exec()\\n#13 /var/www/html/nextcloud/remote.php(151): require_once('...')\\n#14 {main}\",\"previous\":{\"class\":\"OCP\\Lock\\LockedException\",\"message\":\"\\\"files/2728ddc06ed93ec71d59c86bc5db169d\\\"(\\\"home::***USER-ID***::files/darf der \\\"so\\\" hei\u00dfen/20230404_105305.jpg.upload.part\\\") is locked\",\"code\":0,\"file\":\"/var/www/html/nextcloud/lib/private/Lock/DBLockingProvider.php:139\",\"trace\":\"#0 /var/www/html/nextcloud/lib/private/Files/Storage/Common.php(648): OC\\Lock\\DBLockingProvider->acquireLock()\\n#1 /var/www/html/nextcloud/lib/private/Files/Storage/Wrapper/Wrapper.php(306): OC\\Files\\Storage\\Common->acquireLock()\\n#2 /var/www/html/nextcloud/lib/private/Files/Storage/Wrapper/Wrapper.php(306): OC\\Files\\Storage\\Wrapper\\Wrapper->acquireLock()\\n#3 /var/www/html/nextcloud/lib/private/Files/Storage/Wrapper/Wrapper.php(306): OC\\Files\\Storage\\Wrapper\\Wrapper->acquireLock()\\n#4 /var/www/html/nextcloud/lib/private/Files/View.php(2056): OC\\Files\\Storage\\Wrapper\\Wrapper->acquireLock()\\n#5 /var/www/html/nextcloud/lib/private/Files/View.php(2161): OC\\Files\\View->lockPath()\\n#6 /var/www/html/nextcloud/apps/dav/lib/Connector/Sabre/Directory.php(124): OC\\Files\\View->lockFile()\\n#7 /var/www/html/nextcloud/3rdparty/sabre/dav/lib/DAV/Server.php(1098): OCA\\DAV\\Connector\\Sabre\\Directory->createFile()\\n#8 /var/www/html/nextcloud/3rdparty/sabre/dav/lib/DAV/CorePlugin.php(504): Sabre\\DAV\\Server->createFile()\\n#9 /var/www/html/nextcloud/3rdparty/sabre/event/lib/WildcardEmitterTrait.php(89): Sabre\\DAV\\CorePlugin->httpPut()\\n#10 /var/www/html/nextcloud/3rdparty/sabre/dav/lib/DAV/Server.php(472): Sabre\\DAV\\Server->emit()\\n#11 /var/www/html/nextcloud/apps/dav/lib/Connector/Sabre/Server.php(212): Sabre\\DAV\\Server->invokeMethod()\\n#12 /var/www/html/nextcloud/apps/dav/lib/Server.php(428): OCA\\DAV\\Connector\\Sabre\\Server->start()\\n#13 /var/www/html/nextcloud/apps/dav/appinfo/v2/remote.php(25): OCA\\DAV\\Server->exec()\\n#14 /var/www/html/nextcloud/remote.php(151): require_once('...')\\n#15 {main}\"}}}}",
        "CustomMessage": "Uncaught exception"
    }
}

Additional info

No response

Reproduce the upload through the files app using a folder containing double quotes, then start with apps/dav/lib/Connector/Sabre/Directory.php and the logged PUT request to the remote DAV endpoint. Trace the .upload.part locking and subsequent file-size error, and verify that uploads to quoted folders succeed or that a permanent failure is reported immediately with its reason.