What is CVE-2026-49331?

CVE-2026-49331 is a medium-severity vulnerability in Red Hat Openshift Container Platform 4, classified under Insufficient Verification of Data Authenticity. CVSS score: 6.5/10. Published 2026-08-05.

How severe is CVE-2026-49331?

Medium severity. CVSS v3 base score is 6.5 out of 10.

Vulnerability in Red Hat Openshift Container Platform 4

CVE-2026-49331

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…

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N.

Affected products

Red Hat Openshift Container Platform 4

Weakness classification (CWE)

CWE-345 — Insufficient Verification of Data Authenticity

References

secalert@redhat.com (x_refsource_REDHAT, vdb-entry)
secalert@redhat.com (x_refsource_REDHAT, issue-tracking)

Frequently asked questions

What is CVE-2026-49331?: CVE-2026-49331 is a medium-severity vulnerability in Red Hat Openshift Container Platform 4, classified under Insufficient Verification of Data Authenticity. CVSS score: 6.5/10. Published 2026-08-05.
How severe is CVE-2026-49331?: Medium severity. CVSS v3 base score is 6.5 out of 10.