CVE-2026-10086

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

CVSS 8.7 HIGHEPSS 0.2%CWE-79

Vexday Risk Score

41Atención

Decisión SSVC (CISA)

Attend

PoC disponible → seguir de cerca

CVSS 8.7EPSS 0.2%KEV nãoPoC públicaNuclei —Metasploit —Patch —

Ciclo de vida

25 jun 2026Publicada en NVD

Recomendación: Planificar corrección próxima — ya existe PoC pública.

GitLab has remediated an issue in GitLab EE affecting all versions from 16.4 before 18.11.6, 19.0 before 19.0.3, and 19.1 before 19.1.1 that under certain conditions could have allowed an authenticated user with developer-role permissions to execute arbitrary client-side code in the context of another user's session, due to improper sanitization of user-supplied input.

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

Productos afectados

GitLab · GitLab

PoCs públicas encontradas — 1

cve_referencehackerone.com/reports/3734800no verificado

⚠ Recursos públicos, para evaluar la exposición de sistemas que controlas o estás autorizado a probar. Prueba solo con autorización.

¿Quieres saber si tu infraestructura está expuesta a esto?

Hablar con TrueHacking →

Referencias

https://docs.gitlab.com/releases/patches/patch-release-gitlab-19-1-1-released/https://gitlab.com/gitlab-org/gitlab/-/work_items/601634 https://hackerone.com/reports/3734800