Vulnerability · Published Nov 15, 2025 · Assigned by GitLab
CVE-2025-11990Improper Handling of URL Encoding (Hex Encoding) in GitLab
Low 3.1
In plain English
A low-severity security flaw 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 0.3% (higher than 26% of all known vulnerabilities).
Severity (CVSS 3.1)3.1Low
Exploit odds (30 days)0.3%top 74.4% 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 18.4 before 18.4.4, and 18.5 before 18.5.2 that could have allowed an authenticated user to gain CSRF tokens by exploiting improper input validation in repository references combined with redirect handling weaknesses.
Affected products (as reported)
Weakness: CWE-177 · Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:N/A:N
References
- https://about.gitlab.com/releases/2025/11/12/patch-release-gitlab-18-5-2-released/
- GitLab Issue #577850 issue-tracking, permissions-required
- HackerOne Bug Bounty Report #3257843 technical-description, exploit, permissions-required