CVE-2026-117649Gitea private issue disclosure through issue dependency timeline events
Descripción
The issue timeline API and the web issue page hid cross-reference events that point at issues the reader cannot access, but not "dependency added" and "dependency removed" events. When a readable issue had been linked as a dependency to an issue in a repository the reader cannot access, for example a private repository, any reader of the first issue, including anonymous users of a public repository, received the linked issue's current title, body, state, labels, poster and attachment names through the API, and its repository, number and title on the web page. Creating the link requires access to both issues; comments and attachment downloads of the linked issue stayed protected. Dependency events are now filtered with the same read permission check; a related exposure of unlinked attachment metadata through hidden dependency placeholders was already fixed in 28.2.0.
Datos: CVE.org, NVD, CISA KEV, FIRST EPSS, Ubuntu. Se publican tal como los indican las fuentes, en inglés.
Productos y versiones afectados
Referencias y parches
- GitHub Security Advisory GHSA-p86q-78gw-8f3f vendor-advisory
- Fix: go-gitea/gitea pull request #39942 patch
- Fix backport to release/v28: go-gitea/gitea pull request #40085 patch
- Related fix (hidden dependency attachments, 28.2.0): go-gitea/gitea pull request #39839 patch
- Related fix backport to release/v28 (28.2.0): go-gitea/gitea pull request #39847 patch
- Gitea 28.3.0 release announcement release-notes
- go-gitea/gitea v28.3.0 release release-notes