CVE-2026-3093CWE-79cross-site-scripting

CVE-2026-3093

Medium · published July 30, 2026

CVSS v3.1
4.7
EPSS
0%
Percentile
20.0
In the wild
Unconfirmed
What it is

GitLab has remediated an issue in GitLab CE/EE affecting all versions from 14.0 before 19.0.5, 19.1 before 19.1.3, and 19.2 before 19.2.1 that under certain conditions could have allowed an attacker to execute arbitrary JavaScript in another user's browser via a crafted URL, due to improper sanitization of user-controlled input.

The record
Technical detail
CVSS v3.1
4.7 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:L/I:L/A:N
CVSS v4.0
Not supplied
EPSS
0.00286 · 20.0th percentile
Weakness
CWE-79 · Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Published
2026-07-30T00:17Z
Affected products (6)
ProductVersionsFixed in
gitlab/gitlab≥ 14.0.0, < 19.0.519.0.5
gitlab/gitlab≥ 14.0.0, < 19.0.519.0.5
gitlab/gitlab≥ 19.1.0, < 19.1.319.1.3
gitlab/gitlab≥ 19.1.0, < 19.1.319.1.3
gitlab/gitlaball versions—
gitlab/gitlaball versions—
References (3)
https://docs.gitlab.com/releases/patches/patch-release-gitlab-19-2-1-released/ · [email protected]https://gitlab.com/gitlab-org/gitlab/-/work_items/591274 · [email protected]https://hackerone.com/reports/3539833 · [email protected]
EPSS history
Timeline
  • 29 JUL 19:02Z
    Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') in GitLab
    cvelistv5