Medium severity6.8NVD Advisory· Published Aug 13, 2026· Updated Aug 26, 2026
CVE-2026-58440
CVE-2026-58440
Description
Webhooks created by a collaborator keep firing after their repo access is revoked → ongoing real-time exfiltration of private repo content (incomplete revocation cleanup in DeleteCollaboration)
Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
gitea.devGo | < 1.27.0 | 1.27.0 |
Affected products
2- osv-coordsRange: < 0.0.20260723T184607-160000.1.1
Patches
Vulnerability mechanics
References
8- github.com/advisories/GHSA-66m4-5jjr-2rg5ghsaADVISORY
- github.com/go-gitea/gitea/commit/de4b8277e9cb576f2315fb03b5ab6478b42a1d31ghsaWEB
- github.com/go-gitea/gitea/commit/f69e15afe7496cc62e96dab244629c69eb31a7bfghsaWEB
- github.com/go-gitea/gitea/pull/38406ghsaWEB
- github.com/go-gitea/gitea/pull/38426ghsaWEB
- github.com/go-gitea/gitea/releases/tag/v1.27.0nvdWEB
- github.com/go-gitea/gitea/security/advisories/GHSA-66m4-5jjr-2rg5nvdWEB
- blog.gitea.com/gitea-1.27.0-is-released/nvd
News mentions
1- Go Gitea: 25 Vulnerabilities Including SSRF and Auth Bypass Disclosed TogetherVypr Intelligence · Aug 13, 2026