{"id":"CVE-2026-70406","published":"2026-10-14T15:17:22.570","lastModified":"2026-10-14T16:17:52.077","description":"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.","cvssScore":6.5,"cvssSeverity":"MEDIUM","cvssVector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N","cwes":["CWE-863"],"vendors":[],"products":[],"references":[{"url":"https://blog.gitea.com/release-of-1.27.3/","tags":[]},{"url":"https://github.com/go-gitea/gitea/pull/39006","tags":[]},{"url":"https://github.com/go-gitea/gitea/pull/39013","tags":[]},{"url":"https://github.com/go-gitea/gitea/releases/tag/v1.27.3","tags":[]},{"url":"https://github.com/go-gitea/gitea/security/advisories/GHSA-m78w-jjjx-gp8r","tags":[]}],"exploitRefs":[{"url":"https://github.com/go-gitea/gitea/pull/39006","tags":[]},{"url":"https://github.com/go-gitea/gitea/pull/39013","tags":[]},{"url":"https://github.com/go-gitea/gitea/releases/tag/v1.27.3","tags":[]},{"url":"https://github.com/go-gitea/gitea/security/advisories/GHSA-m78w-jjjx-gp8r","tags":[]}],"hasPoc":true,"ai":null}