CVE-2026-5262
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') in GitLab
6.1
MEDIUM
CVSS 3.1
EPSS 0.07%
Description
GitLab has remediated an issue in GitLab CE/EE affecting all versions from 16.1.0 before 18.9.6, 18.10 before 18.10.4, and 18.11 before 18.11.1 that under certain conditions could have allowed an unauthenticated user to access tokens in the Storybook development environment due to improper input validation.
How to fix CVE-2026-5262
To remediate CVE-2026-5262, upgrade the affected package to a fixed version below.
- —upgrade to 18.9.6 or later
Is CVE-2026-5262 being exploited?
Low — EPSS is 0.1%, meaning exploitation activity has not been observed at scale.
Affected packages (1)
- >= 16.1.0, < 18.9.6, >= 18.10.0, < 18.10.4, >= 18.11.0, < 18.11.1
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM6.1 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N |