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CVE-2026-1516

Improper Control of Generation of Code ('Code Injection') in GitLab

CVSS 5.7 MEDIUMEPSS 0.4%CWE-94
GitLab has remediated an issue in GitLab EE affecting all versions from 18.0.0 before 18.8.9, 18.9 before 18.9.5, and 18.10 before 18.10.3 that in Code Quality reports could have allowed an authenticated user to leak IP addresses of users viewing the report via specially crafted content.
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:N/A:N
Affected products
GitLab · GitLab
public PoCs found — 1
cve_referencehackerone.com/reports/3514461unverified
⚠ Public resources, to assess the exposure of systems you control or are authorized to test. Test only with authorization.

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References
https://about.gitlab.com/releases/2026/04/08/patch-release-gitlab-18-10-3-released/https://gitlab.com/gitlab-org/gitlab/-/work_items/587893https://hackerone.com/reports/3514461