GitLab vulnerability

When requests to the internal network for webhooks are enabled, a server-side request forgery vulnerability in GitLab affecting all versions starting from 10.5 was possible to exploit for an unauthenticated attacker even on a GitLab instance where registration is disabled

Published 11 Jun 2021Updated 1 Oct 2026137 sources
CVSS 6.8 ✓ VERIFIED REFERENCE△ CISA KEV

What happened

When requests to the internal network for webhooks are enabled, a server-side request forgery vulnerability in GitLab affecting all versions starting from 10.5 was possible to exploit for an unauthenticated attacker even on a GitLab instance where registration is disabled

Affected versions

GitLab: >=10.5, <13.6.7; >=13.7, <13.7.7; >=13.8, <13.8.4 Fixed: See vendor advisory.

Why it matters

Review the vendor advisory and exposure of the affected product to determine operational impact.

Detection & mitigation

  • Apply vendor-provided updates or mitigations.
  • Review affected product exposure and access logs.

Public PoC references

RepositoryAuthorFirst seenReference
gitlab.comNVD reference2021-06-11Verified