---
title: "CVE-2026-87719: GitLab EE - Information Disclosure"
description: "GitLab EE 18.3 < 19.1.8, 19.2 < 19.2.6, and 19.3 < 19.3.2 contain an information disclosure caused by bypassing serialization in GraphQL subscription arguments, letting authenticated users with Duo Chat access obtain sensitive Advanced Search configurations."
url: https://panop.io/threat-heartbeat/CVE-2026-87719/
---

# CVE-2026-87719 GitLab EE - Information Disclosure

GitLab EE 18.3 < 19.1.8, 19.2 < 19.2.6, and 19.3 < 19.3.2 contain an information disclosure caused by bypassing serialization in GraphQL subscription arguments, letting authenticated users with Duo Chat access obtain sensitive Advanced Search configurations.

CVSS base score 9.9 /10

Critical

CISA KEV

Not listed

Public exploit

None known

Authentication

Required

EPSS

0.57% chance of exploitation in 30 days

[View the NVD record ↗](https://nvd.nist.gov/vuln/detail/CVE-2026-87719)

## Details

Type

Information Disclosure

Impact

Information Disclosure

CVSS vector

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

Published

12 September 2026

Updated

15 October 2026

Weakness

[CWE-502](https://cwe.mitre.org/data/definitions/502.html)

## Vendor fix

Update to versions 19.1.8, 19.2.6, 19.3.2 or later.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

## References

- [https://nvd.nist.gov/vuln/detail/CVE-2026-87719](https://nvd.nist.gov/vuln/detail/CVE-2026-87719)
- [https://gitlab.com/gitlab-org/gitlab/-/work\_items/628160](https://gitlab.com/gitlab-org/gitlab/-/work_items/628160)
- [https://hackerone.com/reports/4012289](https://hackerone.com/reports/4012289)

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## What this record can't tell you

- Whether you run the affected software, and where
- Whether an attacker can actually reach and exploit it
- The misconfigurations that never get a CVE number
- What it would cost the business, ranked into what to fix first

Panop answers these inside your environment, for this CVE and every other finding.

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