CVE-2026-100104 PUBLISHED

Server-Side Request Forgery (SSRF) in GitLab

Assigner: GitLab
Reserved: 25.09.2026 Published: 13.10.2026 Updated: 13.10.2026

GitLab has remediated an issue in GitLab CE/EE affecting all versions from 10.3 before 19.2.8, 19.3 before 19.3.5, and 19.4 before 19.4.2 that, under certain conditions, could have allowed an authenticated user to perform server-side request forgery and reach internal network resources due to a time-of-check to time-of-use race condition in URL validation during repository import operations.

Metrics

CVSS 3.1

CVSS Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:L/I:N/A:N
CVSS Score: 3.5

Attack Vector	Network	Scope	Changed
Attack Complexity	High	Confidentiality Impact	Low
Privileges Required	Low	Integrity Impact	None
User Interaction	None	Availability Impact	None

CVSS 3.1

Product Status

Vendor	GitLab
Product	GitLab
Versions	Default: unaffected affected from 10.3 to 19.2.8 (excl.) affected from 19.3 to 19.3.5 (excl.) affected from 19.4 to 19.4.2 (excl.)

Solutions

Upgrade to versions 19.2.8, 19.3.5, 19.4.2 or above.

Credits

This vulnerability has been discovered internally by GitLab team member Félix Veillette-Potvin finder

References

Problem Types

CWE-918: Server-Side Request Forgery (SSRF) CWE