CVE-2023-3424 | BDVDB-2026-207247 Detail

GitLabGitLab

Description#

An issue has been discovered in GitLab CE/EE affecting all versions starting from 10.3 before 15.11.10, all versions starting from 16.0 before 16.0.6, all versions starting from 16.1 before 16.1.1. A Regular Expression Denial of Service was possible via sending crafted payloads to the preview_markdown endpoint.

Impact#

Per CVSS v3.1: confidentiality impact none, integrity impact none, availability impact high. Attack vector: network.

Weaknesses#

CWE-1333 Inefficient Regular Expression Complexity

References#

Exploit#

https://hackerone.com/reports/1960970

History#

Version 12023-07-13Record published in the CVE List.
Version 22024-10-30Most recent update recorded in the CVE List.

Published

Published: 2023-07-13
Last modified: 2024-10-30

Vendor information

Vendor: GitLab
Product: GitLab

All GitLab vulnerabilities

Score

7.5 High

EPSS

less than 1%, Very Low

Estimated chance of exploitation in the next 30 days. EPSS percentile: 60.1.

KEV

Not listed in the CISA Known Exploited Vulnerabilities catalog.

Impact

Not classified

Action

No specific action is recorded in the source data. Check the references for vendor guidance.

Affected Systems

Vulnerable
>= 10.3 and < 15.11.10
Fixed
15.11.10
Vulnerable
>= 16.0 and < 16.0.6
Fixed
16.0.6
Vulnerable
>= 16.1 and < 16.1.1
Fixed
16.1.1

Scoring System

CVSS v4.0

Not available

CVSS v3.1

7.5 High

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

Metric breakdown
Attack Vector	Network
Attack Complexity	Low
Privileges Required	None
User Interaction	None
Scope	Unchanged
Confidentiality	None
Integrity	None
Availability	High

CVSS v3.0

Not available

CVSS v2

Not available

Source: CVE List v5 (record); CISA KEV (kev, action); FIRST EPSS (epss).