CI variable disclosure via overbroad creation response
Published May 22, 2025 · Updated May 22, 2025
Information disclosure in GitLab CE/EE allows remote authenticated users to read masked or hidden CI variables through the WebUI. The variable-creation HTTP response returns values from protected variables that the user did not author instead of preserving their masked or hidden state. Exploitation requires high-privileged access to create a variable; the documented consequence is confidential-data disclosure without integrity or availability impact.
Summary
What happened
Information disclosure in GitLab CE/EE allows remote authenticated users to read masked or hidden CI variables through the WebUI. The variable-creation HTTP response returns values from protected variables that the user did not author instead of preserving their masked or hidden state. Exploitation requires high-privileged access to create a variable; the documented consequence is confidential-data disclosure without integrity or availability impact.
The record
- CVE
- CVE-2025-4979
- Published
- May 22, 2025
- Updated
- May 22, 2025
- Vendor
- GitLab
- Product
- GitLab
- Classifications
- CWE-1220, T1212
- Attack vector
- network
- Privileges
- admin
Timeline
How it unfolded
- May 22, 2025CVE publishedPublication date reported by the CVE source.
- May 22, 2025Record 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=0 <17.10.7
- Affected versionversion=17.11 <17.11.3
- Affected versionversion=18.0 <18.0.1
What conditions does exploitation require?
What is affected?
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
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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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