VULNERABILITY INTELLIGENCE
CVE-2026-58440
CVSS score6.8 MEDIUM
EPSS probability0.48%
CISA KEVNot currently listed
Published2026-08-13
Last modified2026-08-26
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:N/A:N
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`)
Weakness classification
- 88ee5874-cf24-4952-aea0-31affedb7ff2: CWE-284