CVE-2026-49332

highpriority · track · 0EPSS 0.005 · 45 %ileDEEUUS

grimoire priorityP2 · Scheduled

Exploitable?

—

no known exploitation

Likely / severe?

0.53% (45th) EPSS

CVSS 8.5 · high

Is it mine?

11 products

Check your exposure

Who says so?

3 sources

cnnvd · enisa_euvd · cert_bund

EPSS · scored 2026-10-27

A flaw was found in openshift/oauth-proxy. The proxy sets authenticated identity headers using only dash-variant keys (X-Forwarded-User) but does not strip underscore-variant keys (X_Forwarded_User) from incoming requests. WSGI and PHP frameworks normalize both variants to the same variable, allowing an authenticated low-privilege user to smuggle a forged identity that may override the legitimate authenticated identity in the upstream application.

cvss

Technical severity, 0–10. One row per scoring source.

8.5

010

base score 0–10 · higher = more severe · hover a vector to decode

v3.18.5highCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:L/A:Nsecondary · ENISA EU

v3.18.5highCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:L/A:Nsecondary · secalert@redhat.com USexploitability 3.1 · impact 4.7

v3.17.8highCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:L/A:N/E:Usecondary · CVSS-BT (t0sche)

ssvc

A stakeholder decision — act, attend, or track — from exploitation and impact.

Trackcoordinatorcisa_ssvcUS

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-436US

affected products (11)

Products and version ranges known to be affected.

Red Hat Enterprise Linuxall versionscert_bundDEcpe:/o:redhat:enterprise_linux:-
Red Hat OpenShift Container Platformall versionscert_bundDEcpe:/a:redhat:openshift:container_platform
Red Hat OpenShift Container Platform 4.20.33all versionscert_bundDEcpe:/a:redhat:openshift:container_platform_4.20.33
Red Hat OpenShift≤ Container Platform <4.21.28cert_bundDE
Red Hat Red Hat OpenShift Container Platform 4.14< 1785549818enisa_euvdEU
Red Hat Red Hat OpenShift Container Platform 4.16< 1785544039enisa_euvdEU
Red Hat Red Hat OpenShift Container Platform 4.18< 1785529735enisa_euvdEU
Red Hat Red Hat OpenShift Container Platform 4.19< 1785521728enisa_euvdEU
Red Hat Red Hat OpenShift Container Platform 4.2< 1785833742enisa_euvdEU
Red Hat Red Hat OpenShift Container Platform 4.21< 1785851359enisa_euvdEU
Red Hat Red Hat OpenShift Container Platform 4.22< 1785885351enisa_euvdEU

advisories (1)

Vendor and ecosystem advisories describing this.

WID-SEC-W-2026-2749Red Hat OpenShift (oauth-proxy): Schwachstelle ermöglicht Umgehen von SicherheitsvorkehrungenDeutsch2026-08-10csaf · cert_bundDE
Ein entfernter, authentisierter Angreifer kann eine Schwachstelle in Red Hat OpenShift ausnutzen, um Sicherheitsvorkehrungen zu umgehen und Daten zu manipulieren.

also known as (3)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd cert_bund NVD CVE.org MITRE

published 2026-07-28modified 2026-10-24

references (24)

External citations — patches, advisories, analysis.

scry

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