CVE-2026-92883highCWE-79

CVE-2026-92883: high-severity vulnerability in GitLab

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

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41Vexday Risk Score

No sign of exploitation. It has an official Brazilian government alert and has a public proof of concept.

ssvc Attendcvss 8.7epss 0.5%
Official alert in Brazil

Brazil's federal government published an alert, recommendation or bulletin that cites this vulnerability.

Source: CTIR Gov (GSI) and CISC Gov.br, under the CC BY-ND 3.0 license.
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.
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N
Affected products
GitLab · GitLab
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