CVE-2026-87719

CVE Enrichment

CVSS: 9.9 CRITICAL
EPSS: 0.57%
EPSS Percentile: 45.64%
CISA KEV: Not listed

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.

Technical Details

CVSS Version: 3.1
CNA / NVD Source: cve@gitlab.com
Published: 12-Sep-2026 10:16
Last Modified: 29-Sep-2026 02:08
EPSS Date: 2026-10-12
CWE: CWE-502

CVSS Vector


            CVSS:3.1                            AV:N /
                            AC:L /
                            PR:L /
                            UI:N /
                            S:C /
                            C:H /
                            I:H /
                            A:H

Affected Products / Versions

gitlab / gitlab
Version / affected range: * · from (inclusive) 18.3.0 · before (exclusive) 18.11.12
cpe:2.3:a:gitlab:gitlab:*:*:*:*:enterprise:*:*:*
gitlab / gitlab
Version / affected range: * · from (inclusive) 19.0.0 · before (exclusive) 19.0.9
cpe:2.3:a:gitlab:gitlab:*:*:*:*:enterprise:*:*:*
gitlab / gitlab
Version / affected range: * · from (inclusive) 19.1.0 · before (exclusive) 19.1.8
cpe:2.3:a:gitlab:gitlab:*:*:*:*:enterprise:*:*:*
gitlab / gitlab
Version / affected range: * · from (inclusive) 19.2.0 · before (exclusive) 19.2.6
cpe:2.3:a:gitlab:gitlab:*:*:*:*:enterprise:*:*:*
gitlab / gitlab
Version / affected range: * · from (inclusive) 19.3.0 · before (exclusive) 19.3.2
cpe:2.3:a:gitlab:gitlab:*:*:*:*:enterprise:*:*:*

References

Last enrichment sync: 12-Oct-2026 23:45
Sources: NVD · FIRST EPSS · CISA KEV
Latest successful provider update; providers refresh independently.

Reported Context (1)

The patch release also addresses 17 other vulnerabilities. These include CVE-2026-87719, a critical insecure deserialization vulnerability (CWE-502) in GitLab EE with a CVSSv3.1 score of 9.9. GitLab states that, under Critical GitLab Path Traversal Vulnerability Actively Exploited; Emergency Patching Urged

CVE (1)

Vendors (1)

Products (7)

Note: Related entities, including threat actors, malware, CVEs, MITRE ATT&CK techniques, vendors, products, tools, countries, and industries, are shown when they appear in the same reporting. Their presence does not necessarily mean they were targeted, compromised, vulnerable, responsible for the activity, or directly involved in the incident.