Vulnerability DatabaseCVE-2026-58440
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CVE-2026-58440
Published:August 13, 2026
Updated:August 31, 2026
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
https://github.com/go-gitea/gitea.git (GITHUB):
Affected version(s) >=v0.9.99 <v1.27.0
Fix Suggestion:
Update to version v1.27.0
gitea.dev (GO):
Affected version(s) >=v0.0.0-20260606154456-42513398c05c <v1.27.0
Fix Suggestion:
Update to version v1.27.0
Related Resources (10)
https://github.com/go-gitea/gitea/commit/f69e15afe7496cc62e96dab244629c69eb31a7bf
https://github.com/go-gitea/gitea/security/advisories/GHSA-66m4-5jjr-2rg5
https://blog.gitea.com/gitea-1.27.0-is-released/
https://github.com/go-gitea/gitea/pull/38406
https://github.com/go-gitea/gitea
https://github.com/go-gitea/gitea/commit/de4b8277e9cb576f2315fb03b5ab6478b42a1d31
https://github.com/go-gitea/gitea/releases/tag/v1.27.0
https://nvd.nist.gov/vuln/detail/CVE-2026-58440
https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/58xxx/CVE-2026-58440.json
https://github.com/go-gitea/gitea/pull/38426
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CVSS v4
Base Score:
8.2
Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
HIGH
User Interaction
NONE
Vulnerable System Confidentiality
HIGH
Vulnerable System Integrity
NONE
Vulnerable System Availability
NONE
Subsequent System Confidentiality
HIGH
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
6.8
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
HIGH
User Interaction
NONE
Scope
CHANGED
Confidentiality
HIGH
Integrity
NONE
Availability
NONE
Weakness Type (CWE)
Incorrect Authorization
CWE-863
Improper Access Control
CWE-284
EPSS
Base Score:
0.28