CVE-2026-87719

critical

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 1…

Vendor / product: Gitlab — gitlab

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.

CVSS

9.9

9.9 (CVSS v3.1)

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

Severity source: NVD CVSS v3.1 (cve@gitlab.com)

Timeline (UTC)

Published: 2026-09-12 03:16

Modified: 2026-09-28 19:08

NVD status: Analyzed

Last synced 1 day ago

Verified against the source API 2026-10-27 06:52 UTC

Exploitation

Not listed in CISA KEV (as of last catalog sync)

Absence from KEV does not mean a CVE is not exploited. Exploitation status: unknown (no authoritative evidence in our sources).

Affected products

gitlab / gitlab ≥18.3.0 <18.11.12, ≥19.0.0 <19.0.9, ≥19.1.0 <19.1.8, ≥19.2.0 <19.2.6, ≥19.3.0 <19.3.2

Weakness classification (CWE)

CWE-502

Source: NVD / CISA. “NVD-CWE-Other” and “NVD-CWE-noinfo” mean NVD could not assign a specific weakness.

Mitigation & advisories

No vendor advisory or patch reference tagged by NVD. Check the references below.

References

https://gitlab.com/gitlab-org/gitlab/-/work_items/628160 cve@gitlab.com
https://hackerone.com/reports/4012289 cve@gitlab.com

Data sources

NVD CVE API 2.0 — fetched 2026-10-27 06:52 UTC · record ↗

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CVE-2026-87719

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Weakness classification (CWE)

Mitigation & advisories

References

Data sources

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