GitLab Community Edition/Enterprise Edition up to 18.0.5/18.1.3/18.2.1 Wiki Feature redos

CVSS Meta Temp Score
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CTI Interest Score
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5.3$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as problematic, has been found in GitLab Community Edition and Enterprise Edition up to 18.0.5/18.1.3/18.2.1. Affected by this issue is some unknown functionality of the component Wiki Feature. Performing a manipulation results in redos. This vulnerability was named CVE-2025-2937. The attack may be initiated remotely. There is no available exploit. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability classified as problematic has been found in GitLab Community Edition and Enterprise Edition up to 18.0.5/18.1.3/18.2.1. This affects an unknown functionality of the component Wiki Feature. The manipulation with an unknown input leads to a redos vulnerability. CWE is classifying the issue as CWE-1333. The product uses a regular expression with an inefficient, possibly exponential worst-case computational complexity that consumes excessive CPU cycles. This is going to have an impact on availability. The summary by CVE is:

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.

The weakness was presented by yuki_osaki as 528995. The advisory is shared at gitlab.com. This vulnerability is uniquely identified as CVE-2025-2937 since 03/28/2025. The exploitability is told to be easy. It is possible to initiate the attack remotely. Neither technical details nor an exploit are publicly available. MITRE ATT&CK project uses the attack technique T1449.003 for this issue.

The vulnerability scanner Nessus provides a plugin with the ID 249245 (GitLab 13.2 < 18.0.6 / 18.1 < 18.1.4 / 18.2 < 18.2.2 (CVE-2025-2937)), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 18.0.6, 18.1.4 or 18.2.2 eliminates this vulnerability.

The vulnerability is also documented in the databases at Tenable (249245) and CERT Bund (WID-SEC-2025-1816). If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Affected

  • Open Source GitLab

Productinfo

Type

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.4
VulDB Meta Temp Score: 5.3

VulDB Base Score: 4.3
VulDB Temp Score: 4.1
VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA Base Score: 6.5
CNA Vector (GitLab): 🔒

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Redos
CWE: CWE-1333 / CWE-400 / CWE-404
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Nessus ID: 249245
Nessus Name: GitLab 13.2 < 18.0.6 / 18.1 < 18.1.4 / 18.2 < 18.2.2 (CVE-2025-2937)

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: Community Edition/Enterprise Edition 18.0.6/18.1.4/18.2.2

Timelineinfo

03/28/2025 CVE reserved
08/13/2025 +137 days Advisory disclosed
08/13/2025 +0 days VulDB entry created
08/15/2025 +2 days VulDB entry last update

Sourcesinfo

Vendor: gitlab.com

Advisory: 528995
Researcher: yuki_osaki
Status: Confirmed

CVE: CVE-2025-2937 (🔒)
GCVE (CVE): GCVE-0-2025-2937
GCVE (VulDB): GCVE-100-320013
CERT Bund: WID-SEC-2025-1816 - GitLab: Mehrere Schwachstellen

Entryinfo

Created: 08/13/2025 20:43
Updated: 08/15/2025 15:42
Changes: 08/13/2025 20:43 (67), 08/13/2025 21:25 (7), 08/14/2025 16:51 (1), 08/15/2025 15:42 (2)
Complete: 🔍
Cache ID: 216::103

If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Discussion

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