Medium severity · published Aug 5, 2026
CVE-2026-49331
Openshift/oauth-proxy: openshift/oauth-proxy: unauthenticated identity header injection on whitelisted paths
6.5
CVSS
0.2%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
Low
Integrity
Low
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.2% · higher than 8% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
RH
Red Hat OpenShift Container Platform 4 · Red Hat
All versions, or not specified · source: vendor
Affected product
RH
Red Hat OpenShift Container Platform 4
Red Hat
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-49331
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-49331
access.redhat.com
https://access.redhat.com/security/cve/CVE-2026-49331
bugzilla.redhat.com
https://bugzilla.redhat.com/show_bug.cgi?id=2483252
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