GitLab EE Unauthorized Data Leak via AI Code Review (v19.1<19.1.3 & 19.2<19.2.1)
CVE-2026-15077 Published on July 29, 2026
Improper Neutralization of Input Used for LLM Prompting in GitLab
GitLab has remediated an issue in GitLab EE affecting all versions from 19.1 before 19.1.3 and 19.2 before 19.2.1 that under certain conditions could have allowed an authenticated user to access information from unauthorized projects due to improper neutralization of untrusted content processed by the AI-assisted code review functionality.
Vulnerability Analysis
CVE-2026-15077 can be exploited 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 a small impact on confidentiality, a small impact on integrity and availability.
Weakness Type
Products Associated with CVE-2026-15077
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Affected Versions
GitLab:- Version 19.1 and below 19.1.3 is affected.
- Version 19.2 and below 19.2.1 is affected.