What is CVE-2025-0549?

CVE-2025-0549 is a medium-severity vulnerability in Gitlab, classified under Authentication Bypass Using an Alternate Path or Channel. CVSS score: 6.8/10. Published 2025-05-09.

How severe is CVE-2025-0549?

Medium severity. CVSS v3 base score is 6.8 out of 10.

Is CVE-2025-0549 known to be exploited?

2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Vulnerability in Gitlab

CVE-2025-0549

An issue has been discovered in GitLab CE/EE affecting all versions starting from 17.3 prior to 17.9.8, from 17.10 prior to 17.10.6, and from 17.11 prior to 17.11.2. A security vulnerability allows attackers to bypass Device OAuth flow protections, enabling authorization form submission through minimal user interaction.

EPSS: 0.003 (25.5th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.8 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:N.

Affected products

Gitlab — versions 17.3, 17.10, 17.11

Weakness classification (CWE)

CWE-288 — Authentication Bypass Using an Alternate Path or Channel

Public proof-of-concept exploits

References

cve@gitlab.com (issue-tracking, Exploit, permissions-required, Issue Tracking)
cve@gitlab.com (Permissions Required, technical-description, permissions-required, exploit)

Frequently asked questions

What is CVE-2025-0549?: CVE-2025-0549 is a medium-severity vulnerability in Gitlab, classified under Authentication Bypass Using an Alternate Path or Channel. CVSS score: 6.8/10. Published 2025-05-09.
How severe is CVE-2025-0549?: Medium severity. CVSS v3 base score is 6.8 out of 10.
Is CVE-2025-0549 known to be exploited?: 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.