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CVE-2026-3093

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

Published: Jul 29, 2026Updated: Aug 3, 2026 Sources: CVE List NVDCWE-79
4.7MEDIUM
NVD MITRE
EPSS Score
0.2%
Top 85.1%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available
Self-Check
OpenVAS

Description

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.

No summary for this CVE yet.

CVSS Vector Breakdown

AV:NAC:HPR:NUI:RS:CC:LI:LA:N
Exploitability
AV:NAttack Vector
Network
AC:HAttack Complexity
High
PR:NPrivileges Required
None
UI:RUser Interaction
Required
Scope
S:CScope
Changed
Impact
C:LConfidentiality
Low
I:LIntegrity
Low
A:NAvailability
None
Open in CVSS calculator →

Weaknesses

CWE-79

Affected Products

GitLab
commercial·NLaka gitlab ce/ee
GitLabSaaSWeb App
DevTools & CI / ci-cd
and 1 more affected products View all →

Exploitability

Official Patch Available
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Attack Graph

Products CVE Techniques Tactics

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MITRE ATT&CK

2 techniques
Execution
Initial Access
View detailed technique mapping

References

https://hackerone.com/reports/3539833
hackerone.com
https://gitlab.com/gitlab-org/gitlab/-/work_items/591274
gitlab.com
https://docs.gitlab.com/releases/patches/patch-release-gitlab-19-2-1-released/
docs.gitlab.com

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