CVE-2026-49331

MEDIUM

Openshift/oauth-proxy: openshift/oauth-proxy: unauthenticated identity header injection on whitelisted paths

Title source: cna
STIX 2.1

Description

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.

References (2)

Core 2
Core References
Vdb Entry, X_Refsource_Redhat vdb-entry x_refsource_redhat
https://access.redhat.com/security/cve/CVE-2026-49331
Issue Tracking, X_Refsource_Redhat issue-tracking x_refsource_redhat
RHBZ#2483252
https://bugzilla.redhat.com/show_bug.cgi?id=2483252

Scores

CVSS v3 6.5
EPSS 0.0013
EPSS Percentile 3.0%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N

CISA SSVC

Vulnrichment
Exploitation none
Automatable yes
Technical Impact partial

Details

CWE
CWE-345
Status published
Products (1)
Red Hat/Red Hat OpenShift Container Platform 4
Published Aug 05, 2026
Tracked Since Aug 05, 2026