Vulnerability · Published Jun 1, 2026 · Assigned by GitHub_M
CVE-2026-45810Nextcloud: Propfind requests for file comments allowed to load comments for other files
Medium 6.8
In plain English
A medium-severity authorization bypass via user-controlled key in security-advisories from nextcloud. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 17% of all known vulnerabilities).
Official 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
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| nextcloud | security-advisories | >= 31.0.0, < 31.0.12>= 32.0.0, < 32.0.3 |
Weakness: CWE-639 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:N/A:N
References
- https://github.com/nextcloud/security-advisories/security/advisories/GHSA-285v-p9x9-cjhj x_refsource_CONFIRM
- https://github.com/nextcloud/server/pull/56982 x_refsource_MISC
- https://hackerone.com/reports/3425534 x_refsource_MISC