Vulnerability · Published Aug 13, 2026 · Assigned by Gitea
CVE-2026-58440Webhooks 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`)
Medium 6.8
In plain English
A medium-severity improper access control in Gitea Open Source Git Server from Gitea. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.5% (higher than 42% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS 3.1)6.8Medium
Exploit odds (30 days)0.5%top 58.2% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known
Official 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 & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Go | gitea.dev | 1.27.0 | GHSA-66m4-5jjr-2rg5 |
| Go | gitea.dev | 1.27.0 | GO-2026-6033 |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Gitea | Gitea Open Source Git Server | 0 – through 1.26.4 |
Weakness: CWE-284 · Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:N/A:N
References
- GitHub Security Advisory vendor-advisory
- Gitea v1.27.0 Release release-notes
- Gitea v1.27.0 Release Blog Post release-notes