CVE-2026-112212
CVE-2026-112212 · Inconsistent Interpretation of HTTP Requests ('HTTP Request/Response Smuggling') in GitLab
This page contains facts from public vulnerability sources. Check the original advisory before updating.
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 7.5 · High · EPSS 0.2% · Fix available
- Published
- Updated
Affected products and versions
gitlab
- Versions
- ≥ 18.3, < 19.3.6: Affected (semver)
- ≥ 19.4, < 19.4.3: Affected (semver)
- ≥ 19.5, < 19.5.1: Affected (semver)
Update to 19.3.6; Update to 19.4.3; Update to 19.5.1