[Bug]: File request (file drop) feature fails: Target folder does not exist anymore

[RTechSn]

⚠️ 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

File request feature fails when someone is trying to upload a file.

Steps to reproduce

1. Open Files, create a new folder Test, open it and click New->Create File request
2. Fill the request subject, "Test" and copy the link
3. Open another browser and paste the link
4. Fill some name, "123" and click Upload->Upload files, then select any file
5. Get 2 errors:
   "Unknown error during upload", "Target folder does not exist anymore"
6. No files are uploaded. Sometimes a folder with entered username is created.

Expected behavior

Files should be uploaded

Nextcloud Server version

32

Operating system

Debian/Ubuntu

PHP engine version

PHP 8.3

Web server

Apache (supported)

Database engine version

Postgres

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

Updated from a MINOR version (ex. 32.0.1 to 32.0.2)

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": [
            ***REMOVED SENSITIVE VALUE***,
            ***REMOVED SENSITIVE VALUE***
        ],
        "trusted_proxies": "***REMOVED SENSITIVE VALUE***",
        "session_keepalive": true,
        "allow_local_remote_servers": true,
        "overwritehost": ***REMOVED SENSITIVE VALUE***
        "overwriteprotocol": "https",
        "overwrite.cli.url": ***REMOVED SENSITIVE VALUE***
        "htaccess.RewriteBase": "\/",
        "preview_concurrency_all": 4,
        "skeletondirectory": "\/mnt\/storage\/nextcloud\/skeleton",
        "defaultapp": "files",
        "log_type": "file",
        "loglevel": 2,
        "logdateformat": "F d, Y H:i:s",
        "log_rotate_size": 10485760,
        "datadirectory": "***REMOVED SENSITIVE VALUE***",
        "dbtype": "pgsql",
        "version": "32.0.1.2",
        "dbname": "***REMOVED SENSITIVE VALUE***",
        "dbhost": "***REMOVED SENSITIVE VALUE***",
        "dbport": "",
        "dbtableprefix": "oc_",
        "mysql.utf8mb4": true,
        "dbuser": "***REMOVED SENSITIVE VALUE***",
        "dbpassword": "***REMOVED SENSITIVE VALUE***",
        "installed": true,
        "filelocking.enabled": true,
        "bulkupload.enabled": false,
        "memcache.local": "\\OC\\Memcache\\APCu",
        "memcache.distributed": "\\OC\\Memcache\\Redis",
        "memcache.locking": "\\OC\\Memcache\\Redis",
        "redis": {
            "host": "***REMOVED SENSITIVE VALUE***",
            "port": 0
        },
        "mail_smtpmode": "smtp",
        "mail_smtpsecure": "ssl",
        "mail_sendmailmode": "smtp",
        "mail_from_address": "***REMOVED SENSITIVE VALUE***",
        "mail_domain": "***REMOVED SENSITIVE VALUE***",
        "mail_smtphost": "***REMOVED SENSITIVE VALUE***",
        "mail_smtpauth": 1,
        "mail_smtpport": "465",
        "mail_smtpname": "***REMOVED SENSITIVE VALUE***",
        "mail_smtppassword": "***REMOVED SENSITIVE VALUE***",
        "filesystem_check_changes": 1,
        "maintenance": false,
        "maintenance_window_start": 1,
        "theme": "",
        "app_install_overwrite": [
            "mindmap_app",
            "onlyoffice",
            "passwords",
            "files_rightclick",
            "fulltextsearch_opensearch"
        ],
        "forbidden_filename_basenames": [
            "con",
            "prn",
            "aux",
            "nul",
            "com0",
            "com1",
            "com2",
            "com3",
            "com4",
            "com5",
            "com6",
            "com7",
            "com8",
            "com9",
            "com\u00b9",
            "com\u00b2",
            "com\u00b3",
            "lpt0",
            "lpt1",
            "lpt2",
            "lpt3",
            "lpt4",
            "lpt5",
            "lpt6",
            "lpt7",
            "lpt8",
            "lpt9",
            "lpt\u00b9",
            "lpt\u00b2",
            "lpt\u00b3"
        ],
        "forbidden_filename_characters": [
            "<",
            ">",
            ":",
            "\"",
            "|",
            "?",
            "*",
            "\\",
            "\/"
        ],
        "forbidden_filename_extensions": [
            " ",
            ".",
            ".filepart",
            ".part"
        ],
        "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",
        "migrate_guest_user_data": true
    }
}

List of activated Apps

Enabled:
  - activity: 5.0.0-dev.0
  - auto_groups: 1.6.2
  - calendar: 6.0.2
  - cloud_federation_api: 1.16.0
  - comments: 1.22.0
  - contacts: 8.0.4
  - contactsinteraction: 1.13.1
  - dav: 1.34.2
  - deck: 1.16.0
  - federatedfilesharing: 1.22.0
  - files: 2.4.0
  - files_accesscontrol: 3.0.1
  - files_antivirus: 6.1.0
  - files_archive: 1.2.8
  - files_automatedtagging: 3.0.0
  - files_fulltextsearch: 32.0.2
  - files_pdfviewer: 5.0.0-dev.0
  - files_sharing: 1.24.0
  - files_trashbin: 1.22.0
  - files_versions: 1.25.0
  - flow_notifications: 3.0.0
  - fulltextsearch: 32.0.0
  - fulltextsearch_opensearch: 30.0.0
  - guests: 4.6.0
  - impersonate: 3.0.0
  - logreader: 5.0.0-dev.0
  - lookup_server_connector: 1.20.0
  - mail: 5.5.11
  - music: 2.4.1
  - notes: 4.12.3
  - notifications: 5.0.0-dev.0
  - notify_push: 1.2.0
  - oauth2: 1.20.0
  - onlyoffice: 9.11.0
  - passwords: 2025.10.20
  - photos: 5.0.0-dev.1
  - profile: 1.1.0
  - provisioning_api: 1.22.0
  - serverinfo: 4.0.0-dev.0
  - settings: 1.15.1
  - sharebymail: 1.22.0
  - spreed: 22.0.1
  - suspicious_login: 10.0.0-dev.0
  - systemtags: 1.22.0
  - tables: 1.0.0
  - text: 6.0.1
  - theming: 2.7.0
  - twofactor_backupcodes: 1.21.0
  - updatenotification: 1.22.0
  - user_status: 1.12.0
  - viewer: 5.0.0-dev.0
  - workflow_script: 3.0.0
  - workflowengine: 2.14.0
Disabled:
  - admin_audit: 1.22.0 (installed 1.21.0)
  - announcementcenter: 7.2.1 (installed 7.2.1)
  - app_api: 32.0.0 (installed 5.0.2)
  - bruteforcesettings: 5.0.0-dev.0 (installed 2.9.0)
  - circles: 32.0.0 (installed 27.0.1)
  - cookbook: 0.11.4 (installed 0.11.4)
  - dashboard: 7.12.0 (installed 7.11.0)
  - encryption: 2.20.0
  - external: 6.0.2 (installed 6.0.2)
  - federation: 1.22.0 (installed 1.21.0)
  - files_downloadlimit: 5.0.0-dev.0 (installed 4.0.0)
  - files_external: 1.24.0 (installed 1.23.0)
  - files_reminders: 1.5.0 (installed 1.4.0)
  - files_rightclick: 0.15.1 (installed 0.15.1)
  - firstrunwizard: 5.0.0-dev.0 (installed 4.0.0)
  - integration_zammad: 3.0.2 (installed 3.0.2)
  - news: 26.1.0 (installed 26.1.0)
  - nextcloud_announcements: 4.0.0-dev.0 (installed 3.0.0)
  - ocs_api_viewer: 1.0.10 (installed 1.0.10)
  - password_policy: 4.0.0-dev.0 (installed 3.0.0)
  - previewgenerator: 5.9.0 (installed 5.9.0)
  - privacy: 4.0.0-dev.0 (installed 3.0.0)
  - recommendations: 5.0.0-dev.0 (installed 4.0.0)
  - related_resources: 3.0.0-dev.0 (installed 2.0.0)
  - richdocuments: 8.7.1 (installed 8.7.1)
  - support: 4.0.0-dev.0 (installed 1.10.0)
  - survey_client: 4.0.0-dev.0 (installed 1.15.0)
  - tasks: 0.16.1 (installed 0.16.1)
  - twofactor_nextcloud_notification: 6.0.0-dev.0
  - twofactor_totp: 14.0.0
  - user_ldap: 1.23.0
  - weather_status: 1.12.0 (installed 1.11.0)
  - webhook_listeners: 1.3.0 (installed 1.2.0)
  - whiteboard: 1.1.2 (installed 1.1.2)

Nextcloud Signing status

No errors have been found.

Nextcloud Logs

No new log entries appear during this operation. Log level is 2.

Additional info

No response

[mfite-sabarca]

I'm facing the same issue on 32.0.0, PUT returns a 409 error

x.x.x.x - - [13/Nov/2025:11:41:19 +0000] "PUT /public.php/dav/files/Bxx6GxHrZsmzpYP/Captura%20de%20pantalla%202025-11-13%20122648.png HTTP/2.0" 409 243 "-" "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/142.0.0.0 Safari/537.36"

And nextcloud logs, report an issue creating the file:

{"reqId":"978bJDY284yGzQ5e2Ow2","level":0,"time":"2025-11-13T11:58:37+00:00","remoteAddr":"x.x.x.x","user":"--","app":"webdav","method":"PUT","url":"/public.php/dav/files/Bxx6GxHrZsmzpYP/Captura%20de%20pantalla%202025-11-13%20122648.png","message":"Files cannot be created in non-existent collections","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":"32.0.0.13","exception":{"Exception":"Sabre\\DAV\\Exception\\Conflict","Message":"Files cannot be created in non-existent collections","Code":0,"Trace":[{"file":"/var/www/nextcloud/3rdparty/sabre/dav/lib/DAV/CorePlugin.php","line":504,"function":"createFile","class":"Sabre\\DAV\\Server","type":"->","args":["*** sensitive parameters replaced ***"]},{"file":"/var/www/nextcloud/3rdparty/sabre/event/lib/WildcardEmitterTrait.php","line":89,"function":"httpPut","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":211,"function":"invokeMethod","class":"Sabre\\DAV\\Server","type":"->"},{"file":"/var/www/nextcloud/apps/dav/appinfo/v2/publicremote.php","line":152,"function":"start","class":"OCA\\DAV\\Connector\\Sabre\\Server","type":"->"},{"file":"/var/www/nextcloud/public.php","line":90,"args":["/var/www/nextcloud/apps/dav/appinfo/v2/publicremote.php"],"function":"require_once"}],"File":"/var/www/nextcloud/3rdparty/sabre/dav/lib/DAV/Server.php","Line":1081,"message":"Files cannot be created in non-existent collections","exception":{},"CustomMessage":"Files cannot be created in non-existent collections"}}

[RTheren]

Can confirm the exact same issue on a Nextcloud at work (OS: Rocky Linux 9, latest Apache, PHP 8.3.28 from Remi repos, MySQL 8 DB, SELinux enabled and enforced).
Debug message is identical to one posted by mfite-sabarca.

Weirdly, I can't replicate this issue on my NC at home (OS: AlmaLinux 9, latest Apache, PHP 8.3.26 from Remi repos, PostgreSQL 16.10, SELinux enabled and enforced).

Already did some comparisons for apache and nextcloud configs, but I haven't stumbled upon anything that would break this functionality. If needed, I can provide more information.

Work NC version: 32.0.2
Home NC version: 32.0.1

EDIT: Updated home NC to 32.0.2 and all packages to the latest version, it's still working fine.

[1358]

This issue also started appearing today on version 32.0.1. Rocky Linux 8.10. Server details: Apache/2.4.37 (Rocky Linux), PHP 8.3.28.

We updated to version 32.0.2, but the problem persists.

Uploads resume working as soon as the link type is changed to a type with read permissions. Removing "read"-Permissions causes the uploads to fail again.

EDIT:

The client also receives the following payload in error cases:

<?xml version="1.0" encoding="utf-8"?>
<d:error xmlns:d="DAV:" xmlns:s="http://sabredav.org/ns">
  <s:exception>Sabre\DAV\Exception\Conflict</s:exception>
  <s:message>Files cannot be created in non-existent collections</s:message>
</d:error>

[1358]

Kinda hard debugging this right now as there seems to be linterally nothing in the server logs plus has been working before (maybe some updates?) last week.

[BlackWolfWoof]

Same issue for my instance

[jb2barrels]

Running into this same issue as well.

Using:

• Rocky Linux 8.10
• MariaDB 10.11.10
• Nginx 1.14.1
• PHP 8.2.29