Cannot upload attachments with encryption enabled

Operating system: Debian 12

Web server: nginx 1.22.1

Database: MariaDB

PHP version: 8.2.30

Nextcloud version: 33.0.0

Where did you install Nextcloud from: zip file from nextcloud.com

Signing status:

No errors have been found.

List of activated apps:

  - activity: 6.0.0-dev.0
  - admin_audit: 1.23.0
  - bruteforcesettings: 6.0.0-dev.0
  - calendar: 6.2.1
  - cloud_federation_api: 1.17.0
  - comments: 1.23.0
  - contacts: 8.4.0
  - dav: 1.36.0
  - deck: 1.17.0
  - encryption: 2.21.0
  - federatedfilesharing: 1.23.0
  - files: 2.5.0
  - files_accesscontrol: 4.0.0
  - files_downloadlimit: 5.1.0-dev.0
  - files_pdfviewer: 6.0.0-dev.0
  - files_sharing: 1.25.2
  - files_trashbin: 1.23.0
  - files_versions: 1.26.0
  - impersonate: 4.0.0
  - logreader: 6.0.0
  - lookup_server_connector: 1.21.0
  - metadata: 0.23.0
  - notifications: 6.0.0
  - oauth2: 1.21.0
  - password_policy: 5.0.0-dev.0
  - photos: 6.0.0-dev.0
  - privacy: 5.0.0-dev.0
  - profile: 1.2.0
  - provisioning_api: 1.23.0
  - related_resources: 4.0.0-dev.0
  - serverinfo: 5.0.0-dev.0
  - settings: 1.16.0
  - sharebymail: 1.23.0
  - socialsharing_email: 4.0.1
  - text: 7.0.0-dev.3
  - theming: 2.8.0
  - transfer: 0.6.3
  - twofactor_backupcodes: 1.22.0
  - twofactor_nextcloud_notification: 7.0.0
  - twofactor_totp: 15.0.0-dev.0
  - viewer: 6.0.0-dev.0
  - workflowengine: 2.15.0
Disabled:
  - app_api: 33.0.0 (installed 33.0.0)
  - circles: 33.0.0 (installed 33.0.0)
  - contactsinteraction: 1.14.1 (installed 1.14.1)
  - dashboard: 7.13.0 (installed 7.13.0)
  - federation: 1.23.0 (installed 1.23.0)
  - files_external: 1.25.1 (installed 1.25.1)
  - files_reminders: 1.6.0 (installed 1.6.0)
  - firstrunwizard: 6.0.0-dev.0 (installed 6.0.0-dev.0)
  - nextcloud_announcements: 5.0.0 (installed 5.0.0)
  - recommendations: 6.0.0-dev.0 (installed 6.0.0-dev.0)
  - support: 5.0.0 (installed 5.0.0)
  - survey_client: 5.0.0-dev.0 (installed 5.0.0-dev.0)
  - suspicious_login: 11.0.0-dev.0
  - systemtags: 1.23.0 (installed 1.23.0)
  - updatenotification: 1.23.0 (installed 1.23.0)
  - user_ldap: 1.24.0
  - user_status: 1.13.0 (installed 1.13.0)
  - weather_status: 1.13.0 (installed 1.13.0)
  - webhook_listeners: 1.5.0 (installed 1.5.0)

Nextcloud configuration:

{
    "system": {
        "passwordsalt": "***REMOVED SENSITIVE VALUE***",
        "secret": "***REMOVED SENSITIVE VALUE***",
        "trusted_domains": [
            "cm.gl"
        ],
        "trusted_proxies": "***REMOVED SENSITIVE VALUE***",
        "overwriteprotocol": "https",
        "overwritehost": "cm.gl",
        "overwrite.cli.url": "http:\/\/localhost\/",
        "session_lifetime": 86400,
        "session_keepalive": true,
        "datadirectory": "***REMOVED SENSITIVE VALUE***",
        "dbtype": "mysql",
        "version": "33.0.0.16",
        "dbname": "***REMOVED SENSITIVE VALUE***",
        "dbhost": "***REMOVED SENSITIVE VALUE***",
        "dbport": "",
        "dbtableprefix": "oc_",
        "mysql.utf8mb4": true,
        "dbuser": "***REMOVED SENSITIVE VALUE***",
        "dbpassword": "***REMOVED SENSITIVE VALUE***",
        "installed": true,
        "instanceid": "***REMOVED SENSITIVE VALUE***",
        "memcache.local": "\\OC\\Memcache\\APCu",
        "memcache.locking": "\\OC\\Memcache\\Redis",
        "redis": {
            "host": "***REMOVED SENSITIVE VALUE***",
            "port": 6379,
            "timeout": 0
        },
        "filelocking.enabled": true,
        "log_type": "file",
        "logfile": "\/media\/RAID\/Nextcloud\/nextcloud.log",
        "loglevel": 3,
        "maintenance": false,
        "skeletondirectory": "",
        "theme": "",
        "memories.db.triggers.fcu": true,
        "memories.exiftool": "\/var\/www\/nextcloud\/apps\/memories\/bin-ext\/exiftool-amd64-glibc",
        "memories.vod.path": "\/var\/www\/nextcloud\/apps\/memories\/bin-ext\/go-vod-amd64",
        "memories.vod.ffmpeg": "\/usr\/bin\/ffmpeg",
        "memories.vod.ffprobe": "\/usr\/bin\/ffprobe",
        "app_install_overwrite": {
            "1": "transfer",
            "3": "metadata"
        },
        "maintenance_window_start": "3",
        "default_phone_region": "DE",
        "mail_smtpmode": "smtp",
        "mail_smtphost": "***REMOVED SENSITIVE VALUE***",
        "mail_smtpport": "25",
        "mail_from_address": "***REMOVED SENSITIVE VALUE***",
        "mail_domain": "***REMOVED SENSITIVE VALUE***",
        "mail_smtptimeout": 30,
        "mail_sendmailmode": "smtp",
        "memories.index.mode": "2",
        "enabledPreviewProviders": [
            "OC\\Preview\\HEIC",
            "OC\\Preview\\Image"
        ],
        "default_language": "de",
        "updater.secret": "***REMOVED SENSITIVE VALUE***",
        "files.chunked_upload.max_size": 10485760
    }
}

Are you using an external user-backend, if yes which one: LDAP/ActiveDirectory/Webdav/...
No

Nextcloud log (data/nextcloud.log)

{"reqId":"homSsfptkBKa04N5w7wl","level":3,"time":"2026-03-10T23:14:59+00:00","remoteAddr":"192.168.178.45","user":"user","app":"no app in context","method":"GET","url":"/remote.php/dav/files/user/Deck/Uebung%2002%20Di%2009_annotated.pdf","scriptName":"/remote.php","message":"Uncaught exception","userAgent":"Mozilla/5.0 (X11; Linux x86_64; rv:145.0) Gecko/20100101 Firefox/145.0","version":"33.0.0.16","exception":{"Exception":"TypeError","Message":"OCA\\Deck\\Db\\CardMapper::findBoardId(): Argument #1 ($id) must be of type int, string given, called in /var/www/nextcloud/apps/deck/lib/Sharing/DeckShareProvider.php on line 984","Code":0,"Trace":[{"file":"/var/www/nextcloud/apps/deck/lib/Sharing/DeckShareProvider.php","line":984,"function":"findBoardId","class":"OCA\\Deck\\Db\\CardMapper","type":"->"},{"file":"/var/www/nextcloud/lib/private/Share20/Manager.php","line":1602,"function":"getAccessList","class":"OCA\\Deck\\Sharing\\DeckShareProvider","type":"->"},{"file":"/var/www/nextcloud/lib/private/Encryption/File.php","line":89,"function":"getAccessList","class":"OC\\Share20\\Manager","type":"->"},{"file":"/var/www/nextcloud/lib/private/Files/Stream/Encryption.php","line":226,"function":"getAccessList","class":"OC\\Encryption\\File","type":"->"},{"function":"stream_open","class":"OC\\Files\\Stream\\Encryption","type":"->"},{"file":"/var/www/nextcloud/lib/private/Files/Stream/Encryption.php","line":156,"function":"fopen"},{"file":"/var/www/nextcloud/lib/private/Files/Stream/Encryption.php","line":131,"function":"wrapSource","class":"OC\\Files\\Stream\\Encryption","type":"::"},{"file":"/var/www/nextcloud/lib/private/Files/Storage/Wrapper/Encryption.php","line":363,"function":"wrap","class":"OC\\Files\\Stream\\Encryption","type":"::"},{"file":"/var/www/nextcloud/lib/private/Files/Storage/Wrapper/Wrapper.php","line":144,"function":"fopen","class":"OC\\Files\\Storage\\Wrapper\\Encryption","type":"->"},{"file":"/var/www/nextcloud/apps/files_accesscontrol/lib/StorageWrapper.php","line":236,"function":"fopen","class":"OC\\Files\\Storage\\Wrapper\\Wrapper","type":"->"},{"file":"/var/www/nextcloud/lib/private/Files/View.php","line":1209,"function":"fopen","class":"OCA\\FilesAccessControl\\StorageWrapper","type":"->"},{"file":"/var/www/nextcloud/lib/private/Files/View.php","line":1037,"function":"basicOperation","class":"OC\\Files\\View","type":"->"},{"file":"/var/www/nextcloud/apps/dav/lib/Connector/Sabre/File.php","line":464,"function":"fopen","class":"OC\\Files\\View","type":"->"},{"file":"/var/www/nextcloud/3rdparty/sabre/dav/lib/DAV/CorePlugin.php","line":85,"function":"get","class":"OCA\\DAV\\Connector\\Sabre\\File","type":"->"},{"file":"/var/www/nextcloud/3rdparty/sabre/event/lib/WildcardEmitterTrait.php","line":89,"function":"httpGet","class":"Sabre\\DAV\\CorePlugin","type":"->"},{"file":"/var/www/nextcloud/3rdparty/sabre/dav/lib/DAV/Server.php","line":472,"function":"emit","class":"Sabre\\DAV\\Server","type":"->"},{"file":"/var/www/nextcloud/apps/dav/lib/Connector/Sabre/Server.php","line":212,"function":"invokeMethod","class":"Sabre\\DAV\\Server","type":"->"},{"file":"/var/www/nextcloud/apps/dav/lib/Server.php","line":427,"function":"start","class":"OCA\\DAV\\Connector\\Sabre\\Server","type":"->"},{"file":"/var/www/nextcloud/apps/dav/appinfo/v2/remote.php","line":25,"function":"exec","class":"OCA\\DAV\\Server","type":"->"},{"file":"/var/www/nextcloud/remote.php","line":151,"args":["/var/www/nextcloud/apps/dav/appinfo/v2/remote.php"],"function":"require_once"}],"File":"/var/www/nextcloud/apps/deck/lib/Db/CardMapper.php","Line":632,"message":"Uncaught exception","exception":"{\"class\":\"TypeError\",\"message\":\"OCA\\Deck\\Db\\CardMapper::findBoardId(): Argument #1 ($id) must be of type int, string given, called in /var/www/nextcloud/apps/deck/lib/Sharing/DeckShareProvider.php on line 984\",\"code\":0,\"file\":\"/var/www/nextcloud/apps/deck/lib/Db/CardMapper.php:632\",\"trace\":\"#0 /var/www/nextcloud/apps/deck/lib/Sharing/DeckShareProvider.php(984): OCA\\Deck\\Db\\CardMapper->findBoardId()\\n#1 /var/www/nextcloud/lib/private/Share20/Manager.php(1602): OCA\\Deck\\Sharing\\DeckShareProvider->getAccessList()\\n#2 /var/www/nextcloud/lib/private/Encryption/File.php(89): OC\\Share20\\Manager->getAccessList()\\n#3 /var/www/nextcloud/lib/private/Files/Stream/Encryption.php(226): OC\\Encryption\\File->getAccessList()\\n#4 [internal function]: OC\\Files\\Stream\\Encryption->stream_open()\\n#5 /var/www/nextcloud/lib/private/Files/Stream/Encryption.php(156): fopen()\\n#6 /var/www/nextcloud/lib/private/Files/Stream/Encryption.php(131): OC\\Files\\Stream\\Encryption::wrapSource()\\n#7 /var/www/nextcloud/lib/private/Files/Storage/Wrapper/Encryption.php(363): OC\\Files\\Stream\\Encryption::wrap()\\n#8 /var/www/nextcloud/lib/private/Files/Storage/Wrapper/Wrapper.php(144): OC\\Files\\Storage\\Wrapper\\Encryption->fopen()\\n#9 /var/www/nextcloud/apps/files_accesscontrol/lib/StorageWrapper.php(236): OC\\Files\\Storage\\Wrapper\\Wrapper->fopen()\\n#10 /var/www/nextcloud/lib/private/Files/View.php(1209): OCA\\FilesAccessControl\\StorageWrapper->fopen()\\n#11 /var/www/nextcloud/lib/private/Files/View.php(1037): OC\\Files\\View->basicOperation()\\n#12 /var/www/nextcloud/apps/dav/lib/Connector/Sabre/File.php(464): OC\\Files\\View->fopen()\\n#13 /var/www/nextcloud/3rdparty/sabre/dav/lib/DAV/CorePlugin.php(85): OCA\\DAV\\Connector\\Sabre\\File->get()\\n#14 /var/www/nextcloud/3rdparty/sabre/event/lib/WildcardEmitterTrait.php(89): Sabre\\DAV\\CorePlugin->httpGet()\\n#15 /var/www/nextcloud/3rdparty/sabre/dav/lib/DAV/Server.php(472): Sabre\\DAV\\Server->emit()\\n#16 /var/www/nextcloud/apps/dav/lib/Connector/Sabre/Server.php(212): Sabre\\DAV\\Server->invokeMethod()\\n#17 /var/www/nextcloud/apps/dav/lib/Server.php(427): OCA\\DAV\\Connector\\Sabre\\Server->start()\\n#18 /var/www/nextcloud/apps/dav/appinfo/v2/remote.php(25): OCA\\DAV\\Server->exec()\\n#19 /var/www/nextcloud/remote.php(151): require_once('...')\\n#20 {main}\"}","CustomMessage":"Uncaught exception"},"id":"69b0a99d32c6b"}
{"reqId":"homSsfptkBKa04N5w7wl","level":3,"time":"2026-03-10T23:14:59+00:00","remoteAddr":"192.168.178.45,"user":"user","app":"webdav","method":"GET","url":"/remote.php/dav/files/user/Deck/Uebung%2002%20Di%2009_annotated.pdf","scriptName":"/remote.php","message":"OCA\\Deck\\Db\\CardMapper::findBoardId(): Argument #1 ($id) must be of type int, string given, called in /var/www/nextcloud/apps/deck/lib/Sharing/DeckShareProvider.php on line 984","userAgent":"Mozilla/5.0 (X11; Linux x86_64; rv:145.0) Gecko/20100101 Firefox/145.0","version":"33.0.0.16","exception":{"Exception":"TypeError","Message":"OCA\\Deck\\Db\\CardMapper::findBoardId(): Argument #1 ($id) must be of type int, string given, called in /var/www/nextcloud/apps/deck/lib/Sharing/DeckShareProvider.php on line 984","Code":0,"Trace":[{"file":"/var/www/nextcloud/apps/deck/lib/Sharing/DeckShareProvider.php","line":984,"function":"findBoardId","class":"OCA\\Deck\\Db\\CardMapper","type":"->"},{"file":"/var/www/nextcloud/lib/private/Share20/Manager.php","line":1602,"function":"getAccessList","class":"OCA\\Deck\\Sharing\\DeckShareProvider","type":"->"},{"file":"/var/www/nextcloud/lib/private/Encryption/File.php","line":89,"function":"getAccessList","class":"OC\\Share20\\Manager","type":"->"},{"file":"/var/www/nextcloud/lib/private/Files/Stream/Encryption.php","line":226,"function":"getAccessList","class":"OC\\Encryption\\File","type":"->"},{"function":"stream_open","class":"OC\\Files\\Stream\\Encryption","type":"->"},{"file":"/var/www/nextcloud/lib/private/Files/Stream/Encryption.php","line":156,"function":"fopen"},{"file":"/var/www/nextcloud/lib/private/Files/Stream/Encryption.php","line":131,"function":"wrapSource","class":"OC\\Files\\Stream\\Encryption","type":"::"},{"file":"/var/www/nextcloud/lib/private/Files/Storage/Wrapper/Encryption.php","line":363,"function":"wrap","class":"OC\\Files\\Stream\\Encryption","type":"::"},{"file":"/var/www/nextcloud/lib/private/Files/Storage/Wrapper/Wrapper.php","line":144,"function":"fopen","class":"OC\\Files\\Storage\\Wrapper\\Encryption","type":"->"},{"file":"/var/www/nextcloud/apps/files_accesscontrol/lib/StorageWrapper.php","line":236,"function":"fopen","class":"OC\\Files\\Storage\\Wrapper\\Wrapper","type":"->"},{"file":"/var/www/nextcloud/lib/private/Files/View.php","line":1209,"function":"fopen","class":"OCA\\FilesAccessControl\\StorageWrapper","type":"->"},{"file":"/var/www/nextcloud/lib/private/Files/View.php","line":1037,"function":"basicOperation","class":"OC\\Files\\View","type":"->"},{"file":"/var/www/nextcloud/apps/dav/lib/Connector/Sabre/File.php","line":464,"function":"fopen","class":"OC\\Files\\View","type":"->"},{"file":"/var/www/nextcloud/3rdparty/sabre/dav/lib/DAV/CorePlugin.php","line":85,"function":"get","class":"OCA\\DAV\\Connector\\Sabre\\File","type":"->"},{"file":"/var/www/nextcloud/3rdparty/sabre/event/lib/WildcardEmitterTrait.php","line":89,"function":"httpGet","class":"Sabre\\DAV\\CorePlugin","type":"->"},{"file":"/var/www/nextcloud/3rdparty/sabre/dav/lib/DAV/Server.php","line":472,"function":"emit","class":"Sabre\\DAV\\Server","type":"->"},{"file":"/var/www/nextcloud/apps/dav/lib/Connector/Sabre/Server.php","line":212,"function":"invokeMethod","class":"Sabre\\DAV\\Server","type":"->"},{"file":"/var/www/nextcloud/apps/dav/lib/Server.php","line":427,"function":"start","class":"OCA\\DAV\\Connector\\Sabre\\Server","type":"->"},{"file":"/var/www/nextcloud/apps/dav/appinfo/v2/remote.php","line":25,"function":"exec","class":"OCA\\DAV\\Server","type":"->"},{"file":"/var/www/nextcloud/remote.php","line":151,"args":["/var/www/nextcloud/apps/dav/appinfo/v2/remote.php"],"function":"require_once"}],"File":"/var/www/nextcloud/apps/deck/lib/Db/CardMapper.php","Line":632,"message":"OCA\\Deck\\Db\\CardMapper::findBoardId(): Argument #1 ($id) must be of type int, string given, called in /var/www/nextcloud/apps/deck/lib/Sharing/DeckShareProvider.php on line 984","exception":"{\"class\":\"TypeError\",\"message\":\"OCA\\Deck\\Db\\CardMapper::findBoardId(): Argument #1 ($id) must be of type int, string given, called in /var/www/nextcloud/apps/deck/lib/Sharing/DeckShareProvider.php on line 984\",\"code\":0,\"file\":\"/var/www/nextcloud/apps/deck/lib/Db/CardMapper.php:632\",\"trace\":\"#0 /var/www/nextcloud/apps/deck/lib/Sharing/DeckShareProvider.php(984): OCA\\Deck\\Db\\CardMapper->findBoardId()\\n#1 /var/www/nextcloud/lib/private/Share20/Manager.php(1602): OCA\\Deck\\Sharing\\DeckShareProvider->getAccessList()\\n#2 /var/www/nextcloud/lib/private/Encryption/File.php(89): OC\\Share20\\Manager->getAccessList()\\n#3 /var/www/nextcloud/lib/private/Files/Stream/Encryption.php(226): OC\\Encryption\\File->getAccessList()\\n#4 [internal function]: OC\\Files\\Stream\\Encryption->stream_open()\\n#5 /var/www/nextcloud/lib/private/Files/Stream/Encryption.php(156): fopen()\\n#6 /var/www/nextcloud/lib/private/Files/Stream/Encryption.php(131): OC\\Files\\Stream\\Encryption::wrapSource()\\n#7 /var/www/nextcloud/lib/private/Files/Storage/Wrapper/Encryption.php(363): OC\\Files\\Stream\\Encryption::wrap()\\n#8 /var/www/nextcloud/lib/private/Files/Storage/Wrapper/Wrapper.php(144): OC\\Files\\Storage\\Wrapper\\Encryption->fopen()\\n#9 /var/www/nextcloud/apps/files_accesscontrol/lib/StorageWrapper.php(236): OC\\Files\\Storage\\Wrapper\\Wrapper->fopen()\\n#10 /var/www/nextcloud/lib/private/Files/View.php(1209): OCA\\FilesAccessControl\\StorageWrapper->fopen()\\n#11 /var/www/nextcloud/lib/private/Files/View.php(1037): OC\\Files\\View->basicOperation()\\n#12 /var/www/nextcloud/apps/dav/lib/Connector/Sabre/File.php(464): OC\\Files\\View->fopen()\\n#13 /var/www/nextcloud/3rdparty/sabre/dav/lib/DAV/CorePlugin.php(85): OCA\\DAV\\Connector\\Sabre\\File->get()\\n#14 /var/www/nextcloud/3rdparty/sabre/event/lib/WildcardEmitterTrait.php(89): Sabre\\DAV\\CorePlugin->httpGet()\\n#15 /var/www/nextcloud/3rdparty/sabre/dav/lib/DAV/Server.php(472): Sabre\\DAV\\Server->emit()\\n#16 /var/www/nextcloud/apps/dav/lib/Connector/Sabre/Server.php(212): Sabre\\DAV\\Server->invokeMethod()\\n#17 /var/www/nextcloud/apps/dav/lib/Server.php(427): OCA\\DAV\\Connector\\Sabre\\Server->start()\\n#18 /var/www/nextcloud/apps/dav/appinfo/v2/remote.php(25): OCA\\DAV\\Server->exec()\\n#19 /var/www/nextcloud/remote.php(151): require_once('...')\\n#20 {main}\"}","CustomMessage":"OCA\\Deck\\Db\\CardMapper::findBoardId(): Argument #1 ($id) must be of type int, string given, called in /var/www/nextcloud/apps/deck/lib/Sharing/DeckShareProvider.php on line 984"},"id":"69b0a99d32c8e"}

Browser log

{"status":500,"message":"Internal server error: Please contact the server administrator if this error reappears multiple times, please include the request ID \"3iZtg7IVEMAsHkVLUYtP\" below in your report.","requestId":"3iZtg7IVEMAsHkVLUYtP"}