[Bug]: Updater does not update 32.0.5

⚠️ 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

The update check in settings does see 32.0.8 but the updater.phar does not.
If I curl the check URL I get error 500. The server has no weird DNS things or egress block rules.

Steps to reproduce

Expected behavior

The updater would see the new version.

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?

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": [
            "hub.diemedialen.de"
        ],
        "overwrite.cli.url": "https:\/\/hub.diemedialen.de\/",
        "htaccess.RewriteBase": "\/",
        "datadirectory": "***REMOVED SENSITIVE VALUE***",
        "dbtype": "pgsql",
        "version": "32.0.5.0",
        "dbname": "***REMOVED SENSITIVE VALUE***",
        "dbhost": "***REMOVED SENSITIVE VALUE***",
        "dbport": "5432",
        "dbtableprefix": "oc_",
        "dbuser": "***REMOVED SENSITIVE VALUE***",
        "dbpassword": "***REMOVED SENSITIVE VALUE***",
        "dbpersistent": "true",
        "installed": true,
        "default_language": "de_DE",
        "default_locale": "de_DE",
        "default_phone_region": "DE",
        "default_timezone": "Europe\/Berlin",
        "memcache.local": "\\OC\\Memcache\\APCu",
        "memcache.distributed": "\\OC\\Memcache\\Redis",
        "memcache.locking": "\\OC\\Memcache\\Redis",
        "redis": {
            "host": "***REMOVED SENSITIVE VALUE***",
            "port": 0
        },
        "maintenance_window_start": 1,
        "maintenance": false,
        "theme": "",
        "loglevel": 0,
        "app_install_overwrite": [
            "files_fulltextsearch_tesseract",
            "mail_roundcube",
            "circlesdb"
        ],
        "mail_domain": "***REMOVED SENSITIVE VALUE***",
        "mail_from_address": "***REMOVED SENSITIVE VALUE***",
        "mail_smtpmode": "smtp",
        "mail_smtpsecure": "ssl",
        "mail_smtphost": "***REMOVED SENSITIVE VALUE***",
        "mail_smtpport": "465",
        "mail_sendmailmode": "smtp",
        "mail_smtpauth": 1,
        "mail_smtpname": "***REMOVED SENSITIVE VALUE***",
        "mail_smtppassword": "***REMOVED SENSITIVE VALUE***",
        "forbidden_filenames": [
            ".htaccess"
        ],
        "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"
        ],
        "defaultapp": "files",
        "trusted_proxies": "***REMOVED SENSITIVE VALUE***",
        "files.chunked_upload.max_size": 104857600,
        "updater.secret": "***REMOVED SENSITIVE VALUE***",
        "updater.release.channel": "stable"
    }
}

List of activated Apps

Enabled:
  - activity: 5.0.0-dev.0
  - app_api: 32.0.0
  - bruteforcesettings: 5.0.0-dev.0
  - circles: 32.0.0
  - cloud_federation_api: 1.16.0
  - collectives: 4.2.0
  - contactsinteraction: 1.13.1
  - dav: 1.34.2
  - federatedfilesharing: 1.22.0
  - files: 2.4.0
  - files_downloadlimit: 5.0.0-dev.0
  - files_pdfviewer: 5.0.0-dev.0
  - files_reminders: 1.5.0
  - files_sharing: 1.24.1
  - files_trashbin: 1.22.0
  - files_versions: 1.25.0
  - firstrunwizard: 5.0.0-dev.0
  - groupfolders: 20.1.12
  - impersonate: 3.0.1
  - logreader: 5.0.0-dev.0
  - lookup_server_connector: 1.20.0
  - nextcloud_announcements: 4.0.0-dev.0
  - notifications: 5.0.0-dev.0
  - notify_push: 1.3.1
  - oauth2: 1.20.0
  - password_policy: 4.0.0-dev.0
  - polls: 8.6.3
  - privacy: 4.0.0-dev.0
  - profile: 1.1.0
  - provisioning_api: 1.22.0
  - related_resources: 3.0.0-dev.0
  - richdocuments: 9.0.5
  - serverinfo: 4.0.0-dev.0
  - settings: 1.15.1
  - sharebymail: 1.22.0
  - systemtags: 1.22.0
  - text: 6.0.1
  - theming: 2.7.0
  - twofactor_admin: 4.11.1
  - twofactor_backupcodes: 1.21.0
  - twofactor_totp: 14.0.0
  - twofactor_webauthn: 2.6.0
  - updatenotification: 1.22.0
  - user_status: 1.12.0
  - viewer: 5.0.0-dev.0
  - webhook_listeners: 1.3.0
  - workflowengine: 2.14.0
Disabled:
  - admin_audit: 1.22.0
  - comments: 1.22.0 (installed 1.19.0)
  - dashboard: 7.12.0 (installed 7.9.0)
  - encryption: 2.20.0
  - federation: 1.22.0 (installed 1.19.0)
  - files_external: 1.24.1
  - files_fulltextsearch: 32.0.2 (installed 32.0.2)
  - fulltextsearch: 32.0.0 (installed 32.0.0)
  - fulltextsearch_elasticsearch: 32.0.2 (installed 32.0.2)
  - notes: 4.13.1 (installed 4.13.1)
  - photos: 5.0.0-dev.1 (installed 2.5.0)
  - recommendations: 5.0.0-dev.0 (installed 2.1.0)
  - support: 4.0.0-dev.0 (installed 1.12.0)
  - survey_client: 4.0.0-dev.0 (installed 1.17.0)
  - suspicious_login: 10.0.0-dev.0
  - twofactor_nextcloud_notification: 6.0.0-dev.0
  - user_ldap: 1.23.0
  - weather_status: 1.12.0 (installed 1.9.0)

Nextcloud Signing status

No errors have been found.

Nextcloud Logs

No relevant logs except that an updater token was generated that worked to access the updater.phar from web, which then said there was no update.

Additional info

As unfancy a setup as it gets.

Start by reproducing the updater.phar check and compare it with the update check in Settings, using the reported 32.0.5 to 32.0.8 case and the check URL that returns HTTP 500. Trace the updater request entry point and determine why it does not see the available version. Done means the updater detects 32.0.8 and the check URL no longer returns the reported error.