CVE-2026-118386
Dashboard / Vulnerabilities / CVE-2026-118386
Summary: Gitea Actions fork workflow trust through pull request review commit
Details: Workflows triggered by a pull request review were read from the commit named in the review's `commit_id`, while the fork restrictions were decided by the reviewed pull request, and the commit was not checked to belong to that pull request. A user with read access to a repository could place a commit of their own in it, through a fork pull request or an AGit push, and submit a review naming that commit on a pull request whose head branch is in the same repository. On instances with a runner serving the repository, the attacker's workflow then ran without approval, received the Actions secrets of the repository and its owner, and got a `GITEA_TOKEN` with write access to the repository. Review-triggered workflows now run on the pull request head.
References: https://blog.gitea.com/release-of-28.3.0/, https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/118xxx/CVE-2026-118386.json, https://github.com/go-gitea/gitea/releases/tag/v28.3.0, https://github.com/go-gitea/gitea/security/advisories/GHSA-32h8-5xqg-h466, https://nvd.nist.gov/vuln/detail/CVE-2026-118386, https://github.com/go-gitea/gitea/pull/40099, https://github.com/go-gitea/gitea/pull/40117
Affected packages
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Affected ranges
Type: GIT
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