GitLab EE 18.318.4.2: Authenticated Read-Only API Tokens Exploit GraphQL
CVE-2025-11340 Published on October 9, 2025
Incorrect Authorization in GitLab
GitLab has remediated an issue in GitLab EE affecting all versions from 18.3 to 18.3.4, 18.4 to 18.4.2 that, under certain conditions, could have allowed authenticated users with read-only API tokens to perform unauthorized write operations on vulnerability records by exploiting incorrectly scoped GraphQL mutations.
Vulnerability Analysis
CVE-2025-11340 is exploitable with network access, and requires small amount of user privileges. This vulnerability is considered to have a low attack complexity. The potential impact of an exploit of this vulnerability is considered to have no impact on confidentiality, a high impact on integrity, and no impact on availability.
Weakness Type
What is an AuthZ Vulnerability?
The software performs an authorization check when an actor attempts to access a resource or perform an action, but it does not correctly perform the check. This allows attackers to bypass intended access restrictions.
CVE-2025-11340 has been classified to as an AuthZ vulnerability or weakness.
Products Associated with CVE-2025-11340
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Affected Versions
GitLab:- Version 18.3 and below 18.3.4 is affected.
- Version 18.4 and below 18.4.2 is affected.
Exploit Probability
EPSS (Exploit Prediction Scoring System) scores estimate the probability that a vulnerability will be exploited in the wild within the next 30 days. The percentile shows you how this score compares to all other vulnerabilities.