CVE-2023-2198

HIGH 7.5

CVSS Score

7.5

EPSS Score

0.0%

EPSS Percentile

0th

An issue has been discovered in GitLab CE/EE affecting all versions starting from 8.7 before 15.10.8, all versions starting from 15.11 before 15.11.7, all versions starting from 16.0 before 16.0.2. A Regular Expression Denial of Service was possible via sending crafted payloads to the preview_markdown endpoint.

Vendor	gitlab
Product	gitlab
Ecosystems	DevTools
Industries	Technology
Published	Jun 7, 2023
Last Updated	Jan 7, 2025

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CVSS v3 Breakdown

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

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

Affected Versions

GitLab / GitLab

>=8.7, <15.10.8 >=15.11, <15.11.7 >=16.0, <16.0.2

References

NVD ↗ CVE.org ↗ EPSS Data ↗

gitlab.com: https://gitlab.com/gitlab-org/gitlab/-/issues/408273 hackerone.com: https://hackerone.com/reports/1947187 gitlab.com: https://gitlab.com/gitlab-org/cves/-/blob/master/2023/CVE-2023-2198.json

Credits

Thanks [ryhmnlfj](https://hackerone.com/ryhmnlfj) for reporting this vulnerability through our HackerOne bug bounty program