Gitea private diff disclosure through code comment replies
Summary
| CVE | CVE-2026-126338 |
|---|---|
| State | PUBLISHED |
| Assigner | Gitea |
| Source Priority | CVE Program / NVD first with legacy fallback |
| Published | 2026-11-15 22:17:18 UTC |
| Updated | 2026-11-15 22:17:18 UTC |
| Description | Replying to a code review comment accepted a review ID that belongs to a different pull request, through the web form, the API and incoming mail replies. A signed-in user could reply on a pull request they can access with the ID of a review in a repository they cannot read, and the new comment was attached to that review and received the diff context of the commented lines. Replies are now only accepted for a review of the same pull request, and for a pending review only from its author. |
Risk And Classification
Problem Types: CWE-639 | CWE-639 CWE-639: Authorization Bypass Through User-Controlled Key
Vendor Declared Affected Products
References
| Reference | Source | Link | Tags |
|---|---|---|---|
| github.com/go-gitea/gitea/pull/40131 | 88ee5874-cf24-4952-aea0-31affedb7ff2 | github.com | |
| github.com/go-gitea/gitea/releases/tag/v28.4.0 | 88ee5874-cf24-4952-aea0-31affedb7ff2 | github.com | |
| github.com/go-gitea/gitea/security/advisories/GHSA-wgx7-537g-xfrg | 88ee5874-cf24-4952-aea0-31affedb7ff2 | github.com | |
| github.com/go-gitea/gitea/pull/40281 | 88ee5874-cf24-4952-aea0-31affedb7ff2 | github.com | |
| blog.gitea.com/release-of-28.4.0 | 88ee5874-cf24-4952-aea0-31affedb7ff2 | blog.gitea.com | |
| CVE Program record | CVE.ORG | www.cve.org | canonical |
| NVD vulnerability detail | NVD | nvd.nist.gov | canonical, analysis |
Vendor Comments And Credit
Discovery Credit
CNA: https://github.com/silverwind (en)
There are currently no legacy QID mappings associated with this CVE.