CVE-2026-20800

low

Description

Gitea's notification API does not re-validate repository access permissions when returning notification details. After a user's access to a private repository is revoked, they may still view issue and pull request titles through previously received notifications.

References

https://github.com/go-gitea/gitea/security/advisories/GHSA-g54m-9f6g-wj7q

https://github.com/go-gitea/gitea/releases/tag/v1.25.4

https://github.com/go-gitea/gitea/pull/36339

https://blog.gitea.com/release-of-1.25.4/

Details

Source: Mitre, NVD

Published: 2026-01-22

Updated: 2026-01-26

Risk Information

CVSS v2

Base Score: 4

Vector: CVSS2#AV:N/AC:L/Au:S/C:P/I:N/A:N

Severity: Medium

CVSS v3

Base Score: 6.5

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

Severity: Medium

CVSS v4

Base Score: 2.3

Vector: CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N

Severity: Low

EPSS

EPSS: 0.00014