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Vulnerability record · CVE-2026-4868 · published 27 May 2026

CVE-2026-4868: Gitlab insecure direct object reference vulnerability

Gitlab · Gitlab

GitLab has remediated an issue in GitLab EE affecting all versions from 18.8 before 18.10.7, 18.11 before 18.11.4, and 19.0 before 19.0.1 that, under certain conditions, could have allowed an authenticated user to cause specific Duo AI workflows to run under another user's identity due to improper user identity resolution when triggering Duo AI workflow runners.

8.2 CVSS 3.1 High EPSS 0.36% · top 72.7% CWE-639 · Insecure direct object reference
8.2CVSS 3.1 base score
0.36%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
3References
17 Jun 2026Last modified by NVD

Description

GitLab has remediated an issue in GitLab EE affecting all versions from 18.8 before 18.10.7, 18.11 before 18.11.4, and 19.0 before 19.0.1 that, under certain conditions, could have allowed an authenticated user to cause specific Duo AI workflows to run under another user's identity due to improper user identity resolution when triggering Duo AI workflow runners.

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

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://about.gitlab.com/releases/2026/05/27/patch-release-gitlab-19-0-1-released/ Release NotesVendor Advisory
https://gitlab.com/gitlab-org/gitlab/-/work_items/594809 Broken Link
https://hackerone.com/reports/3619872 Permissions Required

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2026-4868), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.