CVE-2026-92883

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

HIGH
8.7
CVSS Score
Published: October 13, 2026 at 01:05 AM UTC
Updated: October 14, 2026 at 08:18 PM UTC
1 product affected across 1 vendorGitLab

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Severity
HIGH8.7
Exploit prediction
EPSS 0.5%
SSVC
No known exploit

Description

GitLab has remediated an issue in GitLab CE/EE affecting all versions from 19.1 before 19.2.8, 19.3 before 19.3.5, and 19.4 before 19.4.2 that, under certain conditions, could have allowed an authenticated user to execute arbitrary JavaScript in the context of other users' browser sessions via a specially crafted repository, due to improper sanitization of HTML attributes in syntax-highlighted output.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

19.1.0 ≤ v < 19.2.819.3.0 ≤ v < 19.3.519.4.0 ≤ v < 19.4.219.119.319.4

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

References (3)

Technical DescriptionExploitPermissions Required
Source: cverecord
https://hackerone.com/reports/3936831

SSVC — Action Prioritization

SSVCNo known exploitNot automatableTotal impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

8.7HIGHGitLab
Attack Vector
NETWORK
Complexity
LOW
Privileges
LOW
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
NONE
Vector?

Quick Info

StatusANALYZED
CWE
CWE-79

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