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CVE-2026-45810

MEDIUMCVSS 6.8/10EPSS 0.25%

Last modified

CVE-2026-45810 is a medium-severity vulnerability rated 6.8/10 on the CVSS scale. 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. EPSS estimates a 0.25% chance of exploitation in the next 30 days.

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

Metrics

CVSS 3.1
6.8/10

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:N/A:N

EPSS Probability
0.25%

16.4th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
NextcloudNextcloud Server>= 31.0.0, < 31.0.12
NextcloudNextcloud Server>= 32.0.0, < 32.0.3
NextcloudNextcloud Server>= 21.0.0, < 21.0.9.20
NextcloudNextcloud Server>= 22.0.0, < 22.2.10.35
NextcloudNextcloud Server>= 23.0.0, < 23.0.12.31
NextcloudNextcloud Server>= 24.0.0, < 24.0.12.30
NextcloudNextcloud Server>= 25.0.0, < 25.0.13.25
NextcloudNextcloud Server>= 26.0.0, < 26.0.13.22
NextcloudNextcloud Server>= 27.0.0, < 27.1.11.22
NextcloudNextcloud Server>= 28.0.0, < 28.0.14.13
NextcloudNextcloud Server>= 29.0.0, < 29.0.16.10
NextcloudNextcloud Server>= 30.0.0, < 30.0.17.5

References

Timeline

Published
Last Modified
Status
Analyzed

Frequently Asked Questions

What is CVE-2026-45810?
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
How severe is CVE-2026-45810?
CVE-2026-45810 has a CVSS score of 6.8/10 (MEDIUM severity). The EPSS model estimates a 0.25% probability of exploitation in the next 30 days.
How do I fix CVE-2026-45810?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2026-45810?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST