CVE-2026-87719
Received Received - Intake

GitLab EE Advanced Search Credential Exposure via GraphQL

Publication date: 2026-09-12

Last updated on: 2026-09-12

Assigner: GitLab Inc.

Description
GitLab has remediated an issue in GitLab EE affecting all versions from 18.3 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.

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Meta Information

Published
2026-09-12
Last Modified
2026-09-12
Generated
2026-09-12
AI Q&A
2026-09-12
EPSS Evaluated
N/A
NVD
CVE-2026-87719
EUVD
EUVD-2026-76778

Affected Vendors & Products

Showing 3 associated CPEs
Vendor Product Version / Range
gitlab gitlab_ee From 18.3 (inc) to 19.1.8 (exc)
gitlab gitlab_ee From 19.2.0 (inc) to 19.2.6 (exc)
gitlab gitlab_ee From 19.3.0 (inc) to 19.3.2 (exc)

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-502 The product deserializes untrusted data without sufficiently ensuring that the resulting data will be valid.

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Executive Summary

GitLab EE versions 18.3 before 19.1.8, 19.2 before 19.2.6, and 19.3 before 19.3.2 have a vulnerability where an authenticated user with Duo Chat access can exploit a crafted GraphQL subscription argument to bypass serialization and retrieve Advanced Search instance configurations and sensitive credentials through server object lookup.

Impact Analysis

This vulnerability allows unauthorized access to sensitive instance configurations and credentials, potentially leading to data breaches, unauthorized system access, or further exploitation of the GitLab environment.

Compliance Impact

This vulnerability could lead to unauthorized access to sensitive data, violating compliance requirements for data protection and security such as GDPR and HIPAA, potentially resulting in legal penalties and reputational damage.

Mitigation Strategies

Upgrade GitLab EE to a patched version: 19.1.8, 19.2.6, or 19.3.2 or later. Verify Duo Chat access controls and review Advanced Search configurations for unauthorized access.

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