Arbitrary GraphQL mutations via insufficient CSRF protection
Published Mar 25, 2026 · Updated Mar 25, 2026
Cross-site request forgery in the GitLab GLQL API allows remote attackers to execute arbitrary GraphQL mutations as authenticated users. The GLQL API accepts mutation requests without sufficient cross-site request-forgery validation, allowing an authenticated browser session to authorize attacker-originated actions. Exploitation requires an authenticated user to interact with attacker-controlled content; affected releases are 17.10 before 18.8.7, 18.9 before 18.9.3, and 18.10 before 18.10.1.
Summary
What happened
Cross-site request forgery in the GitLab GLQL API allows remote attackers to execute arbitrary GraphQL mutations as authenticated users. The GLQL API accepts mutation requests without sufficient cross-site request-forgery validation, allowing an authenticated browser session to authorize attacker-originated actions. Exploitation requires an authenticated user to interact with attacker-controlled content; affected releases are 17.10 before 18.8.7, 18.9 before 18.9.3, and 18.10 before 18.10.1.
The record
- CVE
- CVE-2026-3857
- Published
- Mar 25, 2026
- Updated
- Mar 25, 2026
- Vendor
- GitLab
- Product
- GitLab
- Classifications
- CWE-352, T1190
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Mar 25, 2026CVE publishedPublication date reported by the CVE source.
- Mar 25, 2026Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=17.10 <18.8.7
- Affected versionversion=18.10 <18.10.1
- Affected versionversion=18.9 <18.9.3
What conditions does exploitation require?
What is affected?
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Weakness, pattern, technique
Public exploit references
No public exploit references are available in this record.
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Technologies
Your stack
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Your stack
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