CVEvulnerability

CVE-2026-87719

9.9 CRITICAL Published 2026-09-12 Modified 2026-09-28 Official page ↗
Status
Analyzed
Published
2026-09-12
Last modified
2026-09-28
Assigner
[email protected]
CVSS 3.1 ([email protected])
9.9 CRITICAL — CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
Weaknesses
CWE-502

Description

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.

Affected configurations

• gitlab gitlab (>= 18.3.0 < 18.11.12) • gitlab gitlab (>= 19.0.0 < 19.0.9) • gitlab gitlab (>= 19.1.0 < 19.1.8) • gitlab gitlab (>= 19.2.0 < 19.2.6) • gitlab gitlab (>= 19.3.0 < 19.3.2)

Related

Weakness · CWE (1)

  • CWE-502 Deserialization of Untrusted Data weakness

References