CVE-2026-1516

MEDIUM

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

Title source: cna

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.

References (3)

Core 3

Core References

Exploit technical-description exploit permissions-required

HackerOne Bug Bounty Report #3514461

https://hackerone.com/reports/3514461

https://gitlab.com/gitlab-org/gitlab/-/work_items/587893

https://about.gitlab.com/releases/2026/04/08/patch-release-gitlab-18-10-3-released/

Scores

CVSS v3 5.7

EPSS 0.0043

EPSS Percentile 34.0%

Attack Vector NETWORK

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:N/A:N

CISA SSVC

Vulnrichment

Exploitation none

Automatable no

Technical Impact partial

Details

CWE

CWE-94

Status published

Products (4)

GitLab/GitLab 18.0.0 - 18.8.9

gitlab/gitlab 18.0.0 - 18.8.9

GitLab/GitLab 18.10 - 18.10.3

GitLab/GitLab 18.9 - 18.9.5

Published Apr 08, 2026

Tracked Since Apr 09, 2026