Arbitrary GraphQL Query Execution in GitLab Language Server
CVE-2025-8279

9.8CRITICAL

Key Information:

Vendor

Gitlab
Status
Gitlab Language Server
Vendor
CVE Published:
28 July 2025

What is CVE-2025-8279?

The GitLab Language Server versions from 7.6.0 up to, but not including, 7.30.0 exhibit insufficient input validation, enabling the execution of arbitrary GraphQL queries. This flaw can compromise the system, allowing unauthorized access or manipulation of data through crafted queries. Organizations using affected versions should assess their security posture and apply necessary patches to mitigate potential exploitation.

Affected Version(s)

GitLab Language Server 7.6.0 < 7.30.0

References

https://gitlab.com/gitlab-org/gitlab/-/issues/538205
issue-trackingpermissions-required

CVSS V3.1

Score:
9.8
Severity:
CRITICAL
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

This vulnerability has been discovered internally by GitLab team member Joern Schneeweisz.
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CVE-2025-8279 : Arbitrary GraphQL Query Execution in GitLab Language Server