CVE-2026-5262

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

CVSS 8 HIGHEPSS 0.2%CWE-79

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.

CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:N

Productos afectados

GitLab · GitLab

PoCs públicas encontradas — 1

cve_referencehackerone.com/reports/3574642no verificado

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Referencias

https://about.gitlab.com/releases/2026/04/22/patch-release-gitlab-18-11-1-released/https://gitlab.com/gitlab-org/gitlab/-/work_items/595332 https://hackerone.com/reports/3574642