CVE-2026-70406
mediumGitea's shared comparison helper omits the token repository-access check used when updating pull requests.
Gitea's shared comparison helper omits the token repository-access check used when updating pull requests. A public-only token with read:repository scope can route a comparison or pull request creation through a public base repository and retrieve commit history and diffs from a private head repository accessible to the token owner. This bypasses the token's public-only restriction; it does not remove the account's underlying repository permission checks.
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N Affected products
Not reported by the source (unknown — not "none").
Weakness classification (CWE)
Source: NVD / CISA. “NVD-CWE-Other” and “NVD-CWE-noinfo” mean NVD could not assign a specific weakness.
Mitigation & advisories
No vendor advisory or patch reference tagged by NVD. Check the references below.
References
- https://blog.gitea.com/release-of-1.27.3/ 88ee5874-cf24-4952-aea0-31affedb7ff2
- https://github.com/go-gitea/gitea/pull/39006 88ee5874-cf24-4952-aea0-31affedb7ff2
- https://github.com/go-gitea/gitea/pull/39013 88ee5874-cf24-4952-aea0-31affedb7ff2
- https://github.com/go-gitea/gitea/releases/tag/v1.27.3 88ee5874-cf24-4952-aea0-31affedb7ff2
- https://github.com/go-gitea/gitea/security/advisories/GHSA-m78w-jjjx-gp8r 88ee5874-cf24-4952-aea0-31affedb7ff2
