CVE-2026-70444 in Violation Comments to GitLab Plugin
Summary
by MITRE • 08/05/2026
A missing permission check in Jenkins Violation Comments to GitLab Plugin 2.62.0 and earlier allows attackers with Overall/Read permission to enumerate credentials IDs of credentials stored in Jenkins.
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Analysis
by VulDB Data Team • 08/05/2026
This vulnerability exists within the Jenkins Violation Comments to GitLab plugin version 2.62.0 and earlier, where a critical missing permission check allows unauthorized enumeration of credentials stored within the Jenkins system. The flaw specifically affects users who possess only Overall/Read permission, which typically should grant read access to basic Jenkins information but not credential management capabilities. Attackers exploiting this vulnerability can leverage their limited read permissions to discover credential IDs that are otherwise protected from direct access through proper authentication and authorization controls.
The technical implementation of this vulnerability stems from inadequate input validation and access control mechanisms within the plugin's credential enumeration functions. When legitimate requests are made to retrieve violation comments or related metadata, the plugin fails to properly verify whether the requesting user has appropriate authorization levels to access credential information. This missing permission check creates an information disclosure pathway where attackers can systematically query the system to identify available credentials without possessing the necessary administrative privileges required for actual credential access.
The operational impact of this vulnerability extends beyond simple credential enumeration, as it provides attackers with valuable reconnaissance data that can be used in subsequent attacks. Once credential IDs are discovered, threat actors can potentially use this information to target specific credential types, attempt brute force attacks against known credential formats, or combine this intelligence with other vulnerabilities to gain deeper system access. The vulnerability particularly affects organizations using Jenkins with integrated GitLab integration where credential management is critical for maintaining secure continuous integration and deployment pipelines.
Security professionals should recognize this issue as a violation of the principle of least privilege and proper access control implementation, aligning with CWE-284 which addresses inadequate access control mechanisms in software systems. The vulnerability also relates to ATT&CK technique T1552.001, which involves credentials from password storage modules, as attackers can leverage this information to compromise stored credentials within Jenkins. Organizations should immediately upgrade to plugin versions that address this permission check deficiency and implement additional monitoring of credential access patterns to detect potential exploitation attempts.
Mitigation strategies include implementing immediate plugin upgrades to versions that resolve the missing permission check, configuring additional authorization layers through Jenkins security settings, and establishing comprehensive audit logging for credential-related API calls. System administrators should also review existing user permissions to ensure that read-only users cannot access credential information and consider implementing role-based access control policies that align more closely with the principle of least privilege. Regular security assessments should include verification of permission boundaries within plugins and integration components to prevent similar vulnerabilities from being introduced through third-party software components.