AUGUST 15, 2026
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Case File

CVE-2026-58440

MEDIUM · CVSS 6.8 EPSS 0.16% Public Exploit

Source: NVD + CISA KEV + EPSS · Published 2026-08-13 · Last synced 2026-08-15

CyberRota Analysis

AI-Generated

Webhooks created by collaborators continue to function and exfiltrate private repository content even after their access has been revoked, due to incomplete revocation cleanup in the `DeleteCollaboration` process. This vulnerability poses a significant risk to organizations relying on collaboration features, as it allows unauthorized data access and potential data leaks. Organizations using affected repository management systems should prioritize addressing this issue to safeguard sensitive information.

Public Exploit Signal

A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.

Note: these links are listed for security research and verification purposes only.

CVE
CVE-2026-58440
Severity
MEDIUM
CVSS
6.8
EPSS
0.16%

Original NVD 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`)