Vulnerability · Published Apr 8, 2026 · Assigned by GitLab
CVE-2026-1516Improper Control of Generation of Code ('Code Injection') in GitLab
Medium 5.7
In plain English
A medium-severity code injection in GitLab from GitLab. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 38% of all known vulnerabilities).
Severity (CVSS 3.1)5.7Medium
Exploit odds (30 days)0.4%top 61.9% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
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.
Affected products (as reported)
Weakness: CWE-94 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:N/A:N
References
- HackerOne Bug Bounty Report #3514461 technical-description, exploit, permissions-required
- https://gitlab.com/gitlab-org/gitlab/-/work_items/587893
- https://about.gitlab.com/releases/2026/04/08/patch-release-gitlab-18-10-3-released/