SecuriTricks - CVE-2025-2937

Description

An issue has been discovered in GitLab CE/EE affecting all versions from 13.2 before 18.0.6, 18.1 before 18.1.4, and 18.2 before 18.2.2 that could have allowed authenticated users to create a denial of service condition by sending specially crafted markdown payloads to the Wiki feature.

Product(s) Impacted

Vendor	Product	Versions
Gitlab	Gitlab Ce Gitlab Ee	13.2, 18.0.0-18.0.5, 18.1.0-18.1.3, 18.2.0-18.2.1 13.2, 18.0.0-18.0.5, 18.1.0-18.1.3, 18.2.0-18.2.1

Weaknesses

Common security weaknesses mapped to this vulnerability.

CWE-1333

Inefficient Regular Expression Complexity

The product uses a regular expression with an inefficient, possibly exponential worst-case computational complexity that consumes excessive CPU cycles.

*CPE(s)

Affected systems and software identified for this CVE.

Type	Vendor	Product	Version	Update	Edition	Language	Software Edition	Target Software	Target Hardware	Other Information
a	gitlab	gitlab_ce	13.2	/	/	/	/	/	/	/
a	gitlab	gitlab_ce	18.0.0-18.0.5	/	/	/	/	/	/	/
a	gitlab	gitlab_ce	18.1.0-18.1.3	/	/	/	/	/	/	/
a	gitlab	gitlab_ce	18.2.0-18.2.1	/	/	/	/	/	/	/
a	gitlab	gitlab_ee	13.2	/	/	/	/	/	/	/
a	gitlab	gitlab_ee	18.0.0-18.0.5	/	/	/	/	/	/	/
a	gitlab	gitlab_ee	18.1.0-18.1.3	/	/	/	/	/	/	/
a	gitlab	gitlab_ee	18.2.0-18.2.1	/	/	/	/	/	/	/

References

https://gitlab.com/gitlab-org/gitlab/-/issues/528995

https://hackerone.com/reports/3058879

CVSS Score

6.5 / 10

CVSS Data - 3.1

Attack Vector: NETWORK
Attack Complexity: LOW
Privileges Required: LOW
Scope: UNCHANGED
Confidentiality Impact: NONE
Integrity Impact: NONE
Availability Impact: HIGH

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

View Vector String

Timeline

Published: Aug. 13, 2025, 6:15 p.m.
Last Modified: Aug. 14, 2025, 1:12 p.m.

Status : Undergoing Analysis

CVE has been recently published to the CVE List and has been received by the NVD.

More info

Source

cve@gitlab.com

CVE-2025-2937