CVE-2025-11990
Improper Handling of URL Encoding (Hex Encoding) in GitLab
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.
INFO
Published Date :
Nov. 15, 2025, 8:15 a.m.
Last Modified :
Nov. 19, 2025, 5:55 p.m.
Remotely Exploit :
Yes !
Source :
[email protected]
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 3.1 | LOW | ceab7361-8a18-47b1-92ba-4d7d25f6715a | ||||
| CVSS 3.1 | LOW | [email protected] | ||||
| CVSS 3.1 | LOW | MITRE-CVE | ||||
| CVSS 3.1 | LOW | [email protected] |
Solution
- Update GitLab EE to version 18.4.4 or later.
- Update GitLab EE to version 18.5.2 or later.
- Ensure proper input validation for repository references.
- Review redirect handling logic.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2025-11990.
| URL | Resource |
|---|---|
| https://about.gitlab.com/releases/2025/11/12/patch-release-gitlab-18-5-2-released/ | Release Notes Vendor Advisory |
| https://gitlab.com/gitlab-org/gitlab/-/issues/577850 | Broken Link |
| https://hackerone.com/reports/3257843 | Permissions Required |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2025-11990 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2025-11990
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2025-11990 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2025-11990 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
Initial Analysis by [email protected]
Nov. 19, 2025
Action Type Old Value New Value Added CVSS V3.1 AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:N/A:N Added CWE CWE-22 Added CPE Configuration OR *cpe:2.3:a:gitlab:gitlab:*:*:*:*:enterprise:*:*:* versions from (including) 18.4.0 up to (excluding) 18.4.4 *cpe:2.3:a:gitlab:gitlab:*:*:*:*:enterprise:*:*:* versions from (including) 18.5.0 up to (excluding) 18.5.2 Added Reference Type GitLab Inc.: https://about.gitlab.com/releases/2025/11/12/patch-release-gitlab-18-5-2-released/ Types: Release Notes, Vendor Advisory Added Reference Type GitLab Inc.: https://gitlab.com/gitlab-org/gitlab/-/issues/577850 Types: Broken Link Added Reference Type GitLab Inc.: https://hackerone.com/reports/3257843 Types: Permissions Required -
New CVE Received by [email protected]
Nov. 15, 2025
Action Type Old Value New Value Added 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. Added CVSS V3.1 AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:N/A:N Added CWE CWE-177 Added Reference https://about.gitlab.com/releases/2025/11/12/patch-release-gitlab-18-5-2-released/ Added Reference https://gitlab.com/gitlab-org/gitlab/-/issues/577850 Added Reference https://hackerone.com/reports/3257843