CVE-2026-1184

Deserialization of Untrusted Data in GitLab

CVSS 6.5 MEDIUMEPSS 0.3%CWE-502

GitLab has remediated an issue in GitLab EE affecting all versions from 11.9 before 18.9.7, 18.10 before 18.10.6, and 18.11 before 18.11.3 that could have allowed an unauthenticated user to cause denial of service by uploading a specially crafted file due to improper validation.

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

Productos afectados

GitLab · GitLab

PoCs públicas encontradas — 1

cve_referencehackerone.com/reports/3515842no verificado

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Referencias

https://about.gitlab.com/releases/2026/05/13/patch-release-gitlab-18-11-3-released/https://gitlab.com/gitlab-org/gitlab/-/work_items/586634 https://hackerone.com/reports/3515842