CVE-2026-4527
Cross-Site Request Forgery (CSRF) in GitLab
Description
GitLab has remediated an issue in GitLab CE/EE affecting all versions from 11.10 before 18.9.7, 18.10 before 18.10.6, and 18.11 before 18.11.3 that could have allowed an unauthenticated user to create unauthorized Jira subscriptions for a targeted user's namespace via a specially crafted link due to missing CSRF protection.
INFO
Published Date :
May 14, 2026, 6:16 a.m.
Last Modified :
May 15, 2026, 7:56 p.m.
Remotely Exploit :
Yes !
Source :
[email protected]
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 3.1 | MEDIUM | ceab7361-8a18-47b1-92ba-4d7d25f6715a | ||||
| CVSS 3.1 | MEDIUM | [email protected] | ||||
| CVSS 3.1 | MEDIUM | MITRE-CVE |
Solution
- Update GitLab to a version later than 18.9.7, 18.10.6, or 18.11.3.
- Ensure CSRF protection is enabled in configurations.
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-2026-4527.
| URL | Resource |
|---|---|
| https://about.gitlab.com/releases/2026/05/13/patch-release-gitlab-18-11-3-released/ | Release Notes |
| https://gitlab.com/gitlab-org/gitlab/-/work_items/594339 | Broken Link |
| https://hackerone.com/reports/3590487 | 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-2026-4527 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-2026-4527
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-2026-4527 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-4527 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]
May. 15, 2026
Action Type Old Value New Value Added CPE Configuration OR *cpe:2.3:a:gitlab:gitlab:*:*:*:*:community:*:*:* versions from (including) 18.10.0 up to (excluding) 18.10.6 *cpe:2.3:a:gitlab:gitlab:*:*:*:*:community:*:*:* versions from (including) 18.11.0 up to (excluding) 18.11.3 *cpe:2.3:a:gitlab:gitlab:*:*:*:*:enterprise:*:*:* versions from (including) 18.10.0 up to (excluding) 18.10.6 *cpe:2.3:a:gitlab:gitlab:*:*:*:*:enterprise:*:*:* versions from (including) 18.11.0 up to (excluding) 18.11.3 *cpe:2.3:a:gitlab:gitlab:*:*:*:*:community:*:*:* versions from (including) 11.10.0 up to (excluding) 18.9.7 *cpe:2.3:a:gitlab:gitlab:*:*:*:*:enterprise:*:*:* versions from (including) 11.10.0 up to (excluding) 18.9.7 Added Reference Type GitLab Inc.: https://about.gitlab.com/releases/2026/05/13/patch-release-gitlab-18-11-3-released/ Types: Release Notes Added Reference Type GitLab Inc.: https://gitlab.com/gitlab-org/gitlab/-/work_items/594339 Types: Broken Link Added Reference Type GitLab Inc.: https://hackerone.com/reports/3590487 Types: Permissions Required -
New CVE Received by [email protected]
May. 14, 2026
Action Type Old Value New Value Added Description GitLab has remediated an issue in GitLab CE/EE affecting all versions from 11.10 before 18.9.7, 18.10 before 18.10.6, and 18.11 before 18.11.3 that could have allowed an unauthenticated user to create unauthorized Jira subscriptions for a targeted user's namespace via a specially crafted link due to missing CSRF protection. Added CVSS V3.1 AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N Added CWE CWE-352 Added Reference https://about.gitlab.com/releases/2026/05/13/patch-release-gitlab-18-11-3-released/ Added Reference https://gitlab.com/gitlab-org/gitlab/-/work_items/594339 Added Reference https://hackerone.com/reports/3590487