CVE-2026-2973 — Cross-site Scripting in Gitlab

CWE-79 — Cross-site Scripting79 documents5 sources
Severity
5.4MEDIUMNVD
EPSS
0.0%
top 91.18%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
3
GitlabDebian GitlabGitlab CE
Timeline
PublishedMar 25

Description

GitLab has remediated an issue in GitLab CE/EE affecting all versions from 17.7 before 18.8.7, 18.9 before 18.9.3, and 18.10 before 18.10.1 that could have allowed an authenticated user to execute arbitrary JavaScript in a user's browser due to improper sanitization of entity-encoded content in Mermaid diagrams.

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:NExploitability: 2.3 | Impact: 2.7

Affected Packages5 packages

▶CVEListV5gitlab/gitlab17.7 — 18.8.7+2
▶NVDgitlab/gitlab17.7.0 — 18.8.7+2
▶debiandebian/gitlab
▶gitlabgitlab/gitlab

🔴Vulnerability Details

1
GHSA
GHSA-v4cx-jmp6-mgf4: GitLab has remediated an issue in GitLab CE/EE affecting all versions from 17↗2026-03-25
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📋Vendor Advisories

2
GitLab
CVE-2026-2973: GitLab has remediated an issue in GitLab CE/EE affecting all versions from 17.7 before 18.8.7, 18.9 before 18.9.3, and 18.10 before 18.10.1 that could↗2026-03-25
▶
Debian
CVE-2026-2973: gitlab - GitLab has remediated an issue in GitLab CE/EE affecting all versions from 17.7 ...↗2026
▶

🕵️Threat Intelligence

75
Wiz
CVE-2026-4363 Impact, Exploitability, and Mitigation Steps | Wiz↗
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Wiz
CVE-2025-3950 Impact, Exploitability, and Mitigation Steps | Wiz↗
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Wiz
CVE-2025-12555 Impact, Exploitability, and Mitigation Steps | Wiz↗
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Wiz
CVE-2025-14513 Impact, Exploitability, and Mitigation Steps | Wiz↗
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Wiz
CVE-2025-12029 Impact, Exploitability, and Mitigation Steps | Wiz↗
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