[Bug]: "Uncaught exception" messages appearing in INFO logs after upgrade to 32.0.2

⚠️ 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

Error found in Logs

Nextcloud AIO
[Nextcloud Hub 25 Autumn] (32.0.2)

{"reqId":"REMOVED","level":1,"time":"2025-12-17T14:23:58+00:00","remoteAddr":"REMOVED","user":"REMOVED","app":"no app in context","method":"GET","url":"/remote.php/dav/trashbin/REMOVED/trash/Music%201.41.15%E2%80%AFPM/Media.localized/Automatically%20Add%20to%20Music.localized/.localized/de.strings","message":"Uncaught exception","userAgent":"Mozilla/5.0 (Macintosh) mirall/4.0.3 (Nextcloud, macos-24.6.0 ClientArchitecture: x86_64 OsArchitecture: x86_64)","version":"32.0.2.2","exception":{"Exception":"Sabre\DAV\Exception\NotFound","Message":"","Code":0,"Trace":[{"file":"/var/www/html/3rdparty/sabre/dav/lib/DAV/Tree.php","line":95,"function":"getChild","class":"OCA\Files_Trashbin\Sabre\TrashRoot","type":"->","args":["Music 1.41.15 PM"]},{"file":"/var/www/html/3rdparty/sabre/dav/lib/DAV/CorePlugin.php","line":76,"function":"getNodeForPath","class":"Sabre\DAV\Tree","type":"->","args":["trashbin/REMOVED/trash/Music 1.41.15 PM/Media.localized/Automatically Add to Music.localized/.localized/de.strings"]},{"file":"/var/www/html/3rdparty/sabre/event/lib/WildcardEmitterTrait.php","line":89,"function":"httpGet","class":"Sabre\DAV\CorePlugin","type":"->","args":[{"class":"Sabre\HTTP\Request"},{"class":"Sabre\HTTP\Response"}]},{"file":"/var/www/html/3rdparty/sabre/dav/lib/DAV/Server.php","line":472,"function":"emit","class":"Sabre\DAV\Server","type":"->","args":["method:GET",[{"class":"Sabre\HTTP\Request"},{"class":"Sabre\HTTP\Response"}]]},{"file":"/var/www/html/apps/dav/lib/Connector/Sabre/Server.php","line":211,"function":"invokeMethod","class":"Sabre\DAV\Server","type":"->","args":[{"class":"Sabre\HTTP\Request"},{"class":"Sabre\HTTP\Response"}]},{"file":"/var/www/html/apps/dav/lib/Server.php","line":424,"function":"start","class":"OCA\DAV\Connector\Sabre\Server","type":"->","args":[]},{"file":"/var/www/html/apps/dav/appinfo/v2/remote.php","line":22,"function":"exec","class":"OCA\DAV\Server","type":"->","args":[]},{"file":"/var/www/html/remote.php","line":151,"args":["/var/www/html/apps/dav/appinfo/v2/remote.php"],"function":"require_once"}],"File":"/var/www/html/apps/files_trashbin/lib/Sabre/TrashRoot.php","Line":78,"message":"Uncaught exception","exception":[],"CustomMessage":"Uncaught exception"},"id":"REMOVED"}

Another error that is new since the upgrade too

{
"reqId": "REMOVED",
"level": 1,
"time": "2025-12-17T14:29:16+00:00",
"remoteAddr": "REMOVED",
"user": "REMOVED",
"app": "no app in context",
"method": "GET",
"url": "/settings/ajax/checksetup",
"message": "The app config key files_external/user_certificate_scan is not defined in the config lexicon",
"userAgent": "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/142.0.0.0 Safari/537.36",
"version": "32.0.2.2",
"data": [],
"id": "REMOVED"

And this one too

Raw log entry

{
"reqId": "REMOVED",
"level": 1,
"time": "2025-12-17T14:29:18+00:00",
"remoteAddr": "127.0.0.1",
"user": "--",
"app": "no app in context",
"method": "GET",
"url": "/remote.php/dav/",
"message": "Uncaught exception",
"userAgent": "Nextcloud Server Crawler",
"version": "32.0.2.2",
"exception": {
"Exception": "Sabre\DAV\Exception\NotAuthenticated",
"Message": "No public access to this resource., This request is not for a federated calendar, No 'Authorization: Bearer' header found. Either the client didn't send one, or the server is mis-configured, No 'Authorization: Basic' header found. Either the client didn't send one, or the server is misconfigured",
"Code": 0,
"Trace": [
{
"file": "/var/www/html/3rdparty/sabre/event/lib/WildcardEmitterTrait.php",
"line": 89,
"function": "beforeMethod",
"class": "Sabre\DAV\Auth\Plugin",
"type": "->",
"args": [
{
"class": "Sabre\HTTP\Request"
},
{
"class": "Sabre\HTTP\Response"
}
]
},
{
"file": "/var/www/html/3rdparty/sabre/dav/lib/DAV/Server.php",
"line": 456,
"function": "emit",
"class": "Sabre\DAV\Server",
"type": "->",
"args": [
"beforeMethod:GET",
[
{
"class": "Sabre\HTTP\Request"
},
{
"class": "Sabre\HTTP\Response"
}
]
]
},
{
"file": "/var/www/html/apps/dav/lib/Connector/Sabre/Server.php",
"line": 211,
"function": "invokeMethod",
"class": "Sabre\DAV\Server",
"type": "->",
"args": [
{
"class": "Sabre\HTTP\Request"
},
{
"class": "Sabre\HTTP\Response"
}
]
},
{
"file": "/var/www/html/apps/dav/lib/Server.php",
"line": 424,
"function": "start",
"class": "OCA\DAV\Connector\Sabre\Server",
"type": "->",
"args": []
},
{
"file": "/var/www/html/apps/dav/appinfo/v2/remote.php",
"line": 22,
"function": "exec",
"class": "OCA\DAV\Server",
"type": "->",
"args": []
},
{
"file": "/var/www/html/remote.php",
"line": 151,
"args": [
"/var/www/html/apps/dav/appinfo/v2/remote.php"
],
"function": "require_once"
}
],
"File": "/var/www/html/3rdparty/sabre/dav/lib/DAV/Auth/Plugin.php",
"Line": 152,
"message": "Uncaught exception",
"exception": [],
"CustomMessage": "Uncaught exception"
},
"id": "REMOVED"
}

Steps to reproduce

1. Upgraded
2. Saw Errors in Log

Expected behavior

No errors as before upgrade

Nextcloud Server version

32

Operating system

Debian/Ubuntu

PHP engine version

PHP 8.4

Web server

Apache (supported)

Database engine version

PostgreSQL

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

Upgraded to a MAJOR version (ex. 31 to 32)

Are you using the Nextcloud Server Encryption module?

None

What user-backends are you using?

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

Configuration report

List of activated Apps

Nextcloud Signing status

Nextcloud Logs

Additional info

No response

Start by examining apps/dav/lib/Connector/Sabre/Server.php, apps/files_trashbin/lib/Sabre/TrashRoot.php, and the reported Sabre DAV traces to determine which exceptions are newly logged after the upgrade. Reproduce the listed DAV and setup-check requests if possible, then verify that expected requests no longer produce the reported INFO-level "Uncaught exception" or config-lexicon messages.