8.7

CVE-2026-84739

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

GitLab has remediated an issue in GitLab CE/EE affecting all versions from 13.11 before 19.2.7, 19.3 before 19.3.3, and 19.4 before 19.4.1 that under certain conditions could have allowed an authenticated user to execute arbitrary JavaScript in the context of another user's browser session due to improper sanitization of path components in the merge request diff viewer.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Gitlab ≫ GitLab SwEdition community Version >= 13.11.0 < 19.2.7
Gitlab ≫ GitLab SwEdition enterprise Version >= 13.11.0 < 19.2.7
Gitlab ≫ GitLab SwEdition community Version >= 19.3.0 < 19.3.3
Gitlab ≫ GitLab SwEdition enterprise Version >= 19.3.0 < 19.3.3
Gitlab ≫ GitLab Version 19.4.0 SwEdition community
Gitlab ≫ GitLab Version 19.4.0 SwEdition enterprise
VulnDex Vulnerability Enrichment
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.36% 0.276
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
cve@gitlab.com 8.7 2.3 5.8
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N
CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.

https://docs.gitlab.com/releases/patches/patch-release-gitlab-19-4-1-released/
Vendor Advisory
Release Notes
https://gitlab.com/gitlab-org/gitlab/-/work_items/627316
Broken Link
https://hackerone.com/reports/3938482
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