Gitea base repository code disclosure through the web editor in forks
Summary
| CVE | CVE-2026-123009 |
|---|---|
| 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 | When a file is edited in a fork through the web editor, Gitea can first copy a branch from the base repository into the fork. That copy did not check whether the user may read the base repository's code. A user who had forked a repository and later lost access to it, for example after it was made private or they were removed as a collaborator, could keep copying its current branches into their fork and read them. The copy now requires read access to the code of the base repository. |
Risk And Classification
Problem Types: CWE-284 | CWE-863 | CWE-284 CWE-284: Improper Access Control | CWE-863 CWE-863: Incorrect Authorization
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/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 | |
| github.com/go-gitea/gitea/security/advisories/GHSA-9vh6-6hgj-j5m5 | 88ee5874-cf24-4952-aea0-31affedb7ff2 | github.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/adamyordan (en)
CNA: https://github.com/silverwind (en)
There are currently no legacy QID mappings associated with this CVE.