CVE-2026-8589

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

CVSS 7.3 HIGHEPSS 0.3%CWE-79

Vexday Risk Score

41Atención

Decisión SSVC (CISA)

Attend

PoC disponible → seguir de cerca

CVSS 7.3EPSS 0.3%KEV nãoPoC públicaNuclei —Metasploit —Patch —

Ciclo de vida

11 jun 2026Publicada en NVD

Recomendación: Planificar corrección próxima — ya existe PoC pública.

GitLab has remediated an issue in GitLab EE affecting all versions from 13.1.4 before 18.10.8, 18.11 before 18.11.5, and 19.0 before 19.0.2 that under certain conditions could have allowed an authenticated user to add unauthorized email addresses to a targeted user's account due to improper sanitization of user-supplied input in certain group setting fields.

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

Productos afectados

GitLab · GitLab

PoCs públicas encontradas — 1

cve_referencehackerone.com/reports/3722842no verificado

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

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Referencias

https://about.gitlab.com/releases/2026/06/10/patch-release-gitlab-19-0-2-released/https://gitlab.com/gitlab-org/gitlab/-/work_items/600099 https://hackerone.com/reports/3722842