Name: Gitlab Gitlab: CVE-2026-112212: Inconsistent Interpretation of HTTP Requests
Creator: Rapid7
Published: 2026-10-22T00:00:00.000Z
License: https://www.rapid7.com/legal/website-terms-of-use/
Keywords: CVE, CVE-2026-112212, CWE-444, CVSS 7.5, EPSS 0.0019

GitLab has remediated an issue in GitLab CE/EE affecting all versions from 18.3 before 19.3.6, 19.4 before 19.4.3, and 19.5 before 19.5.1 that, under certain conditions, an unauthenticated user could have poisoned a shared cache's OAuth/OIDC discovery document to redirect certain flows to an externally controlled server, due to improper trust of user-supplied values when constructing endpoint URLs in cached discovery responses.

CVSS Details

CVSS 3.1 Base Score: 7.5
CVSS 3.1 Vector: (CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:L/A:L)

Covered by Rapid7

Product	Vendor Advisory	Solution File	Added	Published
Gitlab Gitlab	—	Upgrade Gitlab to the latest version	Oct 23, 2026	Oct 21, 2026

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CVSS Details

Covered by Rapid7

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