GitLab has remediated an issue in GitLab CE/EE affecting all versions from 9.2 before 18.7.5, 18.8 before 18.8.5, and 18.9 before 18.9.1 that could have allowed an unauthenticated user to cause regular expression denial of service by sending specially crafted input to a merge request endpoint under certain conditions.
Metrics
Affected Vendors & Products
References
History
Sat, 28 Feb 2026 01:00:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| CPEs | cpe:2.3:a:gitlab:gitlab:*:*:*:*:community:*:*:* cpe:2.3:a:gitlab:gitlab:*:*:*:*:enterprise:*:*:* cpe:2.3:a:gitlab:gitlab:18.9.0:*:*:*:community:*:*:* cpe:2.3:a:gitlab:gitlab:18.9.0:*:*:*:enterprise:*:*:* |
Fri, 27 Feb 2026 16:15:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Metrics |
ssvc
|
Wed, 25 Feb 2026 20:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | GitLab has remediated an issue in GitLab CE/EE affecting all versions from 9.2 before 18.7.5, 18.8 before 18.8.5, and 18.9 before 18.9.1 that could have allowed an unauthenticated user to cause regular expression denial of service by sending specially crafted input to a merge request endpoint under certain conditions. | |
| Title | Inefficient Regular Expression Complexity in GitLab | |
| First Time appeared |
Gitlab
Gitlab gitlab |
|
| Weaknesses | CWE-1333 | |
| CPEs | cpe:2.3:a:gitlab:gitlab:*:*:*:*:*:*:*:* | |
| Vendors & Products |
Gitlab
Gitlab gitlab |
|
| References |
| |
| Metrics |
cvssV3_1
|
Status: PUBLISHED
Assigner: GitLab
Published: 2026-02-25T20:05:05.289Z
Updated: 2026-02-26T15:07:56.004Z
Reserved: 2026-01-23T20:33:20.246Z
Link: CVE-2026-1388
Updated: 2026-02-26T15:07:27.804Z
Status : Analyzed
Published: 2026-02-25T21:16:36.500
Modified: 2026-02-28T00:45:36.973
Link: CVE-2026-1388
No data.