9.9

CVE-2026-87719

Exploit

Deserialization of Untrusted Data in GitLab

GitLab has remediated an issue in GitLab EE affecting all versions from 18.3 before 18.11.12, 19.0 before 19.0.9, 19.1 before 19.1.8, 19.2 before 19.2.6, and 19.3 before 19.3.2 that under certain conditions could allow an authenticated user with Duo Chat access to obtain Advanced Search instance configurations and sensitive credentials using a specially crafted GraphQL subscription argument to bypass serialization and perform server object lookup.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Gitlab ≫ GitLab SwEdition enterprise Version >= 18.3.0 < 18.11.12
Gitlab ≫ GitLab SwEdition enterprise Version >= 19.0.0 < 19.0.9
Gitlab ≫ GitLab SwEdition enterprise Version >= 19.1.0 < 19.1.8
Gitlab ≫ GitLab SwEdition enterprise Version >= 19.2.0 < 19.2.6
Gitlab ≫ GitLab SwEdition enterprise Version >= 19.3.0 < 19.3.2
VulnDex Vulnerability Enrichment
Diese Information steht angemeldeten Benutzern zur Verfügung. Login Login
Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.61% 0.474
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
cve@gitlab.com 9.9 3.1 6
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
CWE-502 Deserialization of Untrusted Data

The product deserializes untrusted data without sufficiently ensuring that the resulting data will be valid.

https://gitlab.com/gitlab-org/gitlab/-/work_items/628160
Broken Link
https://hackerone.com/reports/4012289
Permissions Required