CVE-2026-7377

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') in GitLab

CVSS 8.7 HIGHEPSS 0.3%CWE-79

Vexday Risk Score

41Attention

SSVC decision (CISA)

Attend

PoC available → attend closely

CVSS 8.7EPSS 0.3%KEV nãoPoC públicaNuclei —Metasploit —Patch —

Lifecycle

14 May 2026Published on NVD

Recommendation: Plan a near-term fix — a public PoC already exists.

GitLab has remediated an issue in GitLab EE affecting all versions from 18.7 before 18.9.7, 18.10 before 18.10.6, and 18.11 before 18.11.3 that, in customizable analytics dashboards, could have allowed an authenticated user to execute arbitrary JavaScript in the context of other users' browsers due to improper input sanitization.

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

Affected products

GitLab · GitLab

public PoCs found — 1

cve_referencehackerone.com/reports/3659044unverified

⚠ Public resources, to assess the exposure of systems you control or are authorized to test. Test only with authorization.

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References

https://about.gitlab.com/releases/2026/05/13/patch-release-gitlab-18-11-3-released/https://gitlab.com/gitlab-org/gitlab/-/work_items/598497 https://hackerone.com/reports/3659044