CVE-2026-49331
6.5
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
Summary
A flaw was found in openshift/oauth-proxy. On paths configured to bypass authentication (skip-auth-regex), the proxy forwards client-supplied identity headers (X-Forwarded-User, X-Forwarded-Email, X-Forwarded-Access-Token) to the upstream application without stripping them. An unauthenticated attacker can inject forged identity headers on whitelisted paths.
Affected Software
| Vendor | Product | Version Range | Status |
|---|
Weaknesses
- CWE-345: Insufficient Verification of Data Authenticity
Workarounds
Review and minimize skip-auth-regex configurations. Add middleware in upstream applications to ignore X-Forwarded-User on unauthenticated paths.
References
- https://access.redhat.com/security/cve/CVE-2026-49331
- https://bugzilla.redhat.com/show_bug.cgi?id=2483252
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