CVE-2026-66853GHSA-w4wc-g858-3672
Gitea restricted-user organization metadata disclosure
Gitea Gitea
CVSS
4.3MediumExploitationNo known exploitationNot in CISA KEV, which does not prove it is unexploitedCISA KEV
Exploit odds (EPSS)0.37%Chance of exploitation activity in the next 30 days, higher than 29% of CVEs. Scored 23 Oct 2026FIRST EPSS
What fixes it
- 1.27.3code.gitea.io/gitea, goGitHub
go get code.gitea.io/gitea@v1.27.3
A fixed version on one release line is not the upgrade target for every line. Check your exact version and any vendor backports.
Description
Gitea's user organization-list API includes Limited-visibility organizations for authenticated restricted accounts without applying the visibility restriction enforced by the single-organization endpoint. A restricted user can list a known user's public organization memberships and retrieve limited organizations' names, descriptions, and avatars. This exposes organization metadata that should be hidden from the requesting account.
Text from CVE List
Affected versions 2
- Giteaaffected: all versions through 1.27.2CVE List
- code.gitea.io/gitea, go<= 1.27.2GitHub
References 5
- github.com/go-gitea/gitea/pull/39047Fixvia CVE List
- github.com/go-gitea/gitea/pull/39058Fixvia CVE List
- github.com/go-gitea/gitea/releases/tag/v1.27.3Fixvia CVE List
- github.com/go-gitea/gitea/security/advisories/GHSA-w4wc-g858-3672Advisoryvia CVE List
- blog.gitea.com/release-of-1.27.3/Referencevia CVE List