CVE-2025-0549

Authentication Bypass Using an Alternate Path or Channel in GitLab

MEDIUM
6.8
CVSS Score
Published: May 9, 2025 at 04:13 PM UTC
Updated: June 17, 2026 at 08:26 AM UTC
1 product affected across 1 vendorGitLab

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Severity
MEDIUM6.8
Exploit prediction
EPSS 0.5%
SSVC
No known exploit

Description

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

17.10 ≤ v < 17.10.617.10.0 ≤ v < 17.10.617.11 ≤ v < 17.11.217.11.0 ≤ v < 17.11.217.3 ≤ v < 17.9.817.3.0 ≤ v < 17.9.817.1017.1117.3
Affected range stops below 17.10.6, so it looks safe — our inference, not a vendor statement
Affected range stops below 17.11.2, so it looks safe — our inference, not a vendor statement
Affected range stops below 17.9.8, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (2)

Issue TrackingPermissions RequiredExploit
https://gitlab.com/gitlab-org/gitlab/-/issues/513996
Technical DescriptionExploitPermissions Required
https://hackerone.com/reports/2927555

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

6.8MEDIUMGitLab
Attack Vector
NETWORK
Complexity
HIGH
Privileges
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
NONE
Vector?

Quick Info

StatusANALYZED
CWE
CWE-288

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