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CVE PROGRAM SOURCE RECORD7.5 High

CVE-2026-112212

Inconsistent Interpretation of HTTP Requests ('HTTP Request/Response Smuggling') in GitLab

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Status
Published
Published
Updated
Assigning organization
GitLab

Description

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.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

GitLab GitLab

Default version status: unaffected

  • 18.3 to < 19.3.6affected
  • 19.4 to < 19.4.3affected
  • 19.5 to < 19.5.1affected

References