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CVE PROGRAM SOURCE RECORD9.9 Critical

CVE-2026-87719

Deserialization of Untrusted Data in GitLab

Read JSON ↗CVE.org ↗
Status
Published
Published
Updated
Assigning organization
GitLab

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 products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

GitLab GitLab

Default version status: unaffected

  • 18.3 to < 18.11.12affected
  • 19.0 to < 19.0.9affected
  • 19.1 to < 19.1.8affected
  • 19.2 to < 19.2.6affected
  • 19.3 to < 19.3.2affected

References