CVE-2026-49332
Detail
Awaiting Enrichment This CVE record has been marked for NVD enrichment efforts.
Description
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.
Metrics
CVSS Version 4.0
CVSS Version 3.x
CVSS Version 2.0
NVD enrichment efforts reference publicly available information to associate
vector strings. CVSS information contributed by other sources is also
displayed.
CVSS 4.0 Severity and Vector Strings:
NVD assessment
not yet provided.
CVSS 3.x Severity and Vector Strings:
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:L/A:N
CVSS 2.0 Severity and Vector Strings:
NVD assessment
not yet provided.
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Weakness Enumeration
CWE-ID
CWE Name
Source
CWE-436
Interpretation Conflict
Red Hat, Inc.
Change History
8 change records found show changes
CVE Modified by Red Hat, Inc.
8/16/2026 6:16:23 AM
Action
Type
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Affected
Record truncated, showing 2048 of 2494 characters.
View Entire Change Record [{"vendor":"Red Hat","product":"Red Hat OpenShift Container Platform 4.14","defaultStatus":"affected","collectionURL":"https://catalog.redhat.com/software/containers/","packageName":"openshift4/ose-oauth-proxy","cpes":["cpe:/a:redhat:openshift:4.14::el9"],"versions":[{"version":"1785549818","lessThan":"*","versionType":"rpm","status":"unaffected"}]},{"vendor":"Red Hat","product":"Red Hat OpenShift Container Platform 4.16","defaultStatus":"affected","collectionURL":"https://catalog.redhat.com/software/containers/","packageName":"openshift4/ose-oauth-proxy-rhel9","cpes":["cpe:/a:redhat:openshift:4.16::el9"],"versions":[{"version":"1785544039","lessThan":"*","versionType":"rpm","status":"unaffected"}]},{"vendor":"Red Hat","product":"Red Hat OpenShift Container Platform 4.18","defaultStatus":"affected","collectionURL":"https://catalog.redhat.com/software/containers/","packageName":"openshift4/ose-oauth-proxy-rhel9","cpes":["cpe:/a:redhat:openshift:4.18::el9"],"versions":[{"version":"1785529735","lessThan":"*","versionType":"rpm","status":"unaffected"}]},{"vendor":"Red Hat","product":"Red Hat OpenShift Container Platform 4.19","defaultStatus":"affected","collectionURL":"https://catalog.redhat.com/software/containers/","packageName":"openshift4/ose-oauth-proxy-rhel9","cpes":["cpe:/a:redhat:openshift:4.19::el9"],"versions":[{"version":"1785521728","lessThan":"*","versionType":"rpm","status":"unaffected"}]},{"vendor":"Red Hat","product":"Red Hat OpenShift Container Platform 4.20","defaultStatus":"affected","collectionURL":"https://catalog.redhat.com/software/containers/","packageName":"openshift4/ose-oauth-proxy-rhel9","cpes":["cpe:/a:redhat:openshift:4.20::el9"],"versions":[{"version":"1785833742","lessThan":"*","versionType":"rpm","status":"unaffected"}]},{"vendor":"Red Hat","product":"Red Hat OpenShift Container Platform 4.21","defaultStatus":"affected","collectionURL":"https://catalog.redhat.com/software/containers/","packageName":"openshift4/ose-oauth-proxy-rhel9","cpes":["cpe:/a:redhat:openshift:4.21::el9"],"versio
Record truncated, showing 2048 of 2493 characters.
View Entire Change Record [{"vendor":"Red Hat","product":"Red Hat OpenShift Container Platform 4.14","defaultStatus":"affected","collectionURL":"https://catalog.redhat.com/software/containers/","packageName":"openshift4/ose-oauth-proxy","cpes":["cpe:/a:redhat:openshift:4.14::el9"],"versions":[{"version":"1785549818","lessThan":"*","versionType":"rpm","status":"unaffected"}]},{"vendor":"Red Hat","product":"Red Hat OpenShift Container Platform 4.16","defaultStatus":"affected","collectionURL":"https://catalog.redhat.com/software/containers/","packageName":"openshift4/ose-oauth-proxy-rhel9","cpes":["cpe:/a:redhat:openshift:4.16::el9"],"versions":[{"version":"1785544039","lessThan":"*","versionType":"rpm","status":"unaffected"}]},{"vendor":"Red Hat","product":"Red Hat OpenShift Container Platform 4.18","defaultStatus":"affected","collectionURL":"https://catalog.redhat.com/software/containers/","packageName":"openshift4/ose-oauth-proxy-rhel9","cpes":["cpe:/a:redhat:openshift:4.18::el9"],"versions":[{"version":"1785529735","lessThan":"*","versionType":"rpm","status":"unaffected"}]},{"vendor":"Red Hat","product":"Red Hat OpenShift Container Platform 4.19","defaultStatus":"affected","collectionURL":"https://catalog.redhat.com/software/containers/","packageName":"openshift4/ose-oauth-proxy-rhel9","cpes":["cpe:/a:redhat:openshift:4.19::el9"],"versions":[{"version":"1785521728","lessThan":"*","versionType":"rpm","status":"unaffected"}]},{"vendor":"Red Hat","product":"Red Hat OpenShift Container Platform 4.2","defaultStatus":"affected","collectionURL":"https://catalog.redhat.com/software/containers/","packageName":"openshift4/ose-oauth-proxy-rhel9","cpes":["cpe:/a:redhat:openshift:4.20::el9"],"versions":[{"version":"1785833742","lessThan":"*","versionType":"rpm","status":"unaffected"}]},{"vendor":"Red Hat","product":"Red Hat OpenShift Container Platform 4.21","defaultStatus":"affected","collectionURL":"https://catalog.redhat.com/software/containers/","packageName":"openshift4/ose-oauth-proxy-rhel9","cpes":["cpe:/a:redhat:openshift:4.21::el9"],"version
CVE Modified by Red Hat, Inc.
8/12/2026 5:17:38 PM
Action
Type
Old Value
New Value
Added
Reference
https://access.redhat.com/errata/RHSA-2026:50758
Changed
Affected
Record truncated, showing 2048 of 2137 characters.
View Entire Change Record [{"vendor":"Red Hat","product":"Red Hat OpenShift Container Platform 4.14","defaultStatus":"affected","collectionURL":"https://catalog.redhat.com/software/containers/","packageName":"openshift4/ose-oauth-proxy","cpes":["cpe:/a:redhat:openshift:4.14::el9"],"versions":[{"version":"1785549818","lessThan":"*","versionType":"rpm","status":"unaffected"}]},{"vendor":"Red Hat","product":"Red Hat OpenShift Container Platform 4.18","defaultStatus":"affected","collectionURL":"https://catalog.redhat.com/software/containers/","packageName":"openshift4/ose-oauth-proxy-rhel9","cpes":["cpe:/a:redhat:openshift:4.18::el9"],"versions":[{"version":"1785529735","lessThan":"*","versionType":"rpm","status":"unaffected"}]},{"vendor":"Red Hat","product":"Red Hat OpenShift Container Platform 4.19","defaultStatus":"affected","collectionURL":"https://catalog.redhat.com/software/containers/","packageName":"openshift4/ose-oauth-proxy-rhel9","cpes":["cpe:/a:redhat:openshift:4.19::el9"],"versions":[{"version":"1785521728","lessThan":"*","versionType":"rpm","status":"unaffected"}]},{"vendor":"Red Hat","product":"Red Hat OpenShift Container Platform 4.20","defaultStatus":"affected","collectionURL":"https://catalog.redhat.com/software/containers/","packageName":"openshift4/ose-oauth-proxy-rhel9","cpes":["cpe:/a:redhat:openshift:4.20::el9"],"versions":[{"version":"1785833742","lessThan":"*","versionType":"rpm","status":"unaffected"}]},{"vendor":"Red Hat","product":"Red Hat OpenShift Container Platform 4.21","defaultStatus":"affected","collectionURL":"https://catalog.redhat.com/software/containers/","packageName":"openshift4/ose-oauth-proxy-rhel9","cpes":["cpe:/a:redhat:openshift:4.21::el9"],"versions":[{"version":"1785851359","lessThan":"*","versionType":"rpm","status":"unaffected"}]},{"vendor":"Red Hat","product":"Red Hat OpenShift Container Platform 4.22","defaultStatus":"affected","collectionURL":"https://catalog.redhat.com/software/containers/","packageName":"openshift4/ose-oauth-proxy-rhel9","cpes":["cpe:/a:redhat:openshift:4.22::el9"],"versio
Record truncated, showing 2048 of 2494 characters.
View Entire Change Record [{"vendor":"Red Hat","product":"Red Hat OpenShift Container Platform 4.14","defaultStatus":"affected","collectionURL":"https://catalog.redhat.com/software/containers/","packageName":"openshift4/ose-oauth-proxy","cpes":["cpe:/a:redhat:openshift:4.14::el9"],"versions":[{"version":"1785549818","lessThan":"*","versionType":"rpm","status":"unaffected"}]},{"vendor":"Red Hat","product":"Red Hat OpenShift Container Platform 4.16","defaultStatus":"affected","collectionURL":"https://catalog.redhat.com/software/containers/","packageName":"openshift4/ose-oauth-proxy-rhel9","cpes":["cpe:/a:redhat:openshift:4.16::el9"],"versions":[{"version":"1785544039","lessThan":"*","versionType":"rpm","status":"unaffected"}]},{"vendor":"Red Hat","product":"Red Hat OpenShift Container Platform 4.18","defaultStatus":"affected","collectionURL":"https://catalog.redhat.com/software/containers/","packageName":"openshift4/ose-oauth-proxy-rhel9","cpes":["cpe:/a:redhat:openshift:4.18::el9"],"versions":[{"version":"1785529735","lessThan":"*","versionType":"rpm","status":"unaffected"}]},{"vendor":"Red Hat","product":"Red Hat OpenShift Container Platform 4.19","defaultStatus":"affected","collectionURL":"https://catalog.redhat.com/software/containers/","packageName":"openshift4/ose-oauth-proxy-rhel9","cpes":["cpe:/a:redhat:openshift:4.19::el9"],"versions":[{"version":"1785521728","lessThan":"*","versionType":"rpm","status":"unaffected"}]},{"vendor":"Red Hat","product":"Red Hat OpenShift Container Platform 4.20","defaultStatus":"affected","collectionURL":"https://catalog.redhat.com/software/containers/","packageName":"openshift4/ose-oauth-proxy-rhel9","cpes":["cpe:/a:redhat:openshift:4.20::el9"],"versions":[{"version":"1785833742","lessThan":"*","versionType":"rpm","status":"unaffected"}]},{"vendor":"Red Hat","product":"Red Hat OpenShift Container Platform 4.21","defaultStatus":"affected","collectionURL":"https://catalog.redhat.com/software/containers/","packageName":"openshift4/ose-oauth-proxy-rhel9","cpes":["cpe:/a:redhat:openshift:4.21::el9"],"versio
CVE Modified by Red Hat, Inc.
8/12/2026 12:17:04 PM
Action
Type
Old Value
New Value
Added
Reference
https://access.redhat.com/errata/RHSA-2026:50681
Changed
Affected
[{"vendor":"Red Hat","product":"Red Hat OpenShift Container Platform 4.18","defaultStatus":"affected","collectionURL":"https://catalog.redhat.com/software/containers/","packageName":"openshift4/ose-oauth-proxy-rhel9","cpes":["cpe:/a:redhat:openshift:4.18::el9"],"versions":[{"version":"1785529735","lessThan":"*","versionType":"rpm","status":"unaffected"}]},{"vendor":"Red Hat","product":"Red Hat OpenShift Container Platform 4.19","defaultStatus":"affected","collectionURL":"https://catalog.redhat.com/software/containers/","packageName":"openshift4/ose-oauth-proxy-rhel9","cpes":["cpe:/a:redhat:openshift:4.19::el9"],"versions":[{"version":"1785521728","lessThan":"*","versionType":"rpm","status":"unaffected"}]},{"vendor":"Red Hat","product":"Red Hat OpenShift Container Platform 4.20","defaultStatus":"affected","collectionURL":"https://catalog.redhat.com/software/containers/","packageName":"openshift4/ose-oauth-proxy-rhel9","cpes":["cpe:/a:redhat:openshift:4.20::el9"],"versions":[{"version":"1785833742","lessThan":"*","versionType":"rpm","status":"unaffected"}]},{"vendor":"Red Hat","product":"Red Hat OpenShift Container Platform 4.21","defaultStatus":"affected","collectionURL":"https://catalog.redhat.com/software/containers/","packageName":"openshift4/ose-oauth-proxy-rhel9","cpes":["cpe:/a:redhat:openshift:4.21::el9"],"versions":[{"version":"1785851359","lessThan":"*","versionType":"rpm","status":"unaffected"}]},{"vendor":"Red Hat","product":"Red Hat OpenShift Container Platform 4.22","defaultStatus":"affected","collectionURL":"https://catalog.redhat.com/software/containers/","packageName":"openshift4/ose-oauth-proxy-rhel9","cpes":["cpe:/a:redhat:openshift:4.22::el9"],"versions":[{"version":"1785885351","lessThan":"*","versionType":"rpm","status":"unaffected"}]},{"vendor":"Red Hat","product":"Red Hat OpenShift Container Platform 4","defaultStatus":"affected","collectionURL":"https://access.redhat.com/downloads/content/package-browser/","packageName":"openshift4/ose-oauth-proxy","cpes":["cpe:/a:redhat:openshift:4"]}]
Record truncated, showing 2048 of 2137 characters.
View Entire Change Record [{"vendor":"Red Hat","product":"Red Hat OpenShift Container Platform 4.14","defaultStatus":"affected","collectionURL":"https://catalog.redhat.com/software/containers/","packageName":"openshift4/ose-oauth-proxy","cpes":["cpe:/a:redhat:openshift:4.14::el9"],"versions":[{"version":"1785549818","lessThan":"*","versionType":"rpm","status":"unaffected"}]},{"vendor":"Red Hat","product":"Red Hat OpenShift Container Platform 4.18","defaultStatus":"affected","collectionURL":"https://catalog.redhat.com/software/containers/","packageName":"openshift4/ose-oauth-proxy-rhel9","cpes":["cpe:/a:redhat:openshift:4.18::el9"],"versions":[{"version":"1785529735","lessThan":"*","versionType":"rpm","status":"unaffected"}]},{"vendor":"Red Hat","product":"Red Hat OpenShift Container Platform 4.19","defaultStatus":"affected","collectionURL":"https://catalog.redhat.com/software/containers/","packageName":"openshift4/ose-oauth-proxy-rhel9","cpes":["cpe:/a:redhat:openshift:4.19::el9"],"versions":[{"version":"1785521728","lessThan":"*","versionType":"rpm","status":"unaffected"}]},{"vendor":"Red Hat","product":"Red Hat OpenShift Container Platform 4.20","defaultStatus":"affected","collectionURL":"https://catalog.redhat.com/software/containers/","packageName":"openshift4/ose-oauth-proxy-rhel9","cpes":["cpe:/a:redhat:openshift:4.20::el9"],"versions":[{"version":"1785833742","lessThan":"*","versionType":"rpm","status":"unaffected"}]},{"vendor":"Red Hat","product":"Red Hat OpenShift Container Platform 4.21","defaultStatus":"affected","collectionURL":"https://catalog.redhat.com/software/containers/","packageName":"openshift4/ose-oauth-proxy-rhel9","cpes":["cpe:/a:redhat:openshift:4.21::el9"],"versions":[{"version":"1785851359","lessThan":"*","versionType":"rpm","status":"unaffected"}]},{"vendor":"Red Hat","product":"Red Hat OpenShift Container Platform 4.22","defaultStatus":"affected","collectionURL":"https://catalog.redhat.com/software/containers/","packageName":"openshift4/ose-oauth-proxy-rhel9","cpes":["cpe:/a:redhat:openshift:4.22::el9"],"versio
CVE Modified by Red Hat, Inc.
8/12/2026 4:17:17 AM
Action
Type
Old Value
New Value
Added
Reference
https://access.redhat.com/errata/RHSA-2026:51007
Added
Reference
https://access.redhat.com/errata/RHSA-2026:51013
Changed
Affected
[{"vendor":"Red Hat","product":"Red Hat OpenShift Container Platform 4.20","defaultStatus":"affected","collectionURL":"https://catalog.redhat.com/software/containers/","packageName":"openshift4/ose-oauth-proxy-rhel9","cpes":["cpe:/a:redhat:openshift:4.20::el9"],"versions":[{"version":"1785833742","lessThan":"*","versionType":"rpm","status":"unaffected"}]},{"vendor":"Red Hat","product":"Red Hat OpenShift Container Platform 4.21","defaultStatus":"affected","collectionURL":"https://catalog.redhat.com/software/containers/","packageName":"openshift4/ose-oauth-proxy-rhel9","cpes":["cpe:/a:redhat:openshift:4.21::el9"],"versions":[{"version":"1785851359","lessThan":"*","versionType":"rpm","status":"unaffected"}]},{"vendor":"Red Hat","product":"Red Hat OpenShift Container Platform 4.22","defaultStatus":"affected","collectionURL":"https://catalog.redhat.com/software/containers/","packageName":"openshift4/ose-oauth-proxy-rhel9","cpes":["cpe:/a:redhat:openshift:4.22::el9"],"versions":[{"version":"1785885351","lessThan":"*","versionType":"rpm","status":"unaffected"}]},{"vendor":"Red Hat","product":"Red Hat OpenShift Container Platform 4","defaultStatus":"affected","collectionURL":"https://access.redhat.com/downloads/content/package-browser/","packageName":"openshift4/ose-oauth-proxy","cpes":["cpe:/a:redhat:openshift:4"]}]
[{"vendor":"Red Hat","product":"Red Hat OpenShift Container Platform 4.18","defaultStatus":"affected","collectionURL":"https://catalog.redhat.com/software/containers/","packageName":"openshift4/ose-oauth-proxy-rhel9","cpes":["cpe:/a:redhat:openshift:4.18::el9"],"versions":[{"version":"1785529735","lessThan":"*","versionType":"rpm","status":"unaffected"}]},{"vendor":"Red Hat","product":"Red Hat OpenShift Container Platform 4.19","defaultStatus":"affected","collectionURL":"https://catalog.redhat.com/software/containers/","packageName":"openshift4/ose-oauth-proxy-rhel9","cpes":["cpe:/a:redhat:openshift:4.19::el9"],"versions":[{"version":"1785521728","lessThan":"*","versionType":"rpm","status":"unaffected"}]},{"vendor":"Red Hat","product":"Red Hat OpenShift Container Platform 4.20","defaultStatus":"affected","collectionURL":"https://catalog.redhat.com/software/containers/","packageName":"openshift4/ose-oauth-proxy-rhel9","cpes":["cpe:/a:redhat:openshift:4.20::el9"],"versions":[{"version":"1785833742","lessThan":"*","versionType":"rpm","status":"unaffected"}]},{"vendor":"Red Hat","product":"Red Hat OpenShift Container Platform 4.21","defaultStatus":"affected","collectionURL":"https://catalog.redhat.com/software/containers/","packageName":"openshift4/ose-oauth-proxy-rhel9","cpes":["cpe:/a:redhat:openshift:4.21::el9"],"versions":[{"version":"1785851359","lessThan":"*","versionType":"rpm","status":"unaffected"}]},{"vendor":"Red Hat","product":"Red Hat OpenShift Container Platform 4.22","defaultStatus":"affected","collectionURL":"https://catalog.redhat.com/software/containers/","packageName":"openshift4/ose-oauth-proxy-rhel9","cpes":["cpe:/a:redhat:openshift:4.22::el9"],"versions":[{"version":"1785885351","lessThan":"*","versionType":"rpm","status":"unaffected"}]},{"vendor":"Red Hat","product":"Red Hat OpenShift Container Platform 4","defaultStatus":"affected","collectionURL":"https://access.redhat.com/downloads/content/package-browser/","packageName":"openshift4/ose-oauth-proxy","cpes":["cpe:/a:redhat:openshift:4"]}]
CVE Modified by Red Hat, Inc.
8/11/2026 6:17:12 AM
Action
Type
Old Value
New Value
Added
Reference
https://access.redhat.com/errata/RHSA-2026:51022
Added
Reference
https://access.redhat.com/errata/RHSA-2026:51038
Changed
Affected
[{"vendor":"Red Hat","product":"Red Hat OpenShift Container Platform 4.21","defaultStatus":"affected","collectionURL":"https://catalog.redhat.com/software/containers/","packageName":"openshift4/ose-oauth-proxy-rhel9","cpes":["cpe:/a:redhat:openshift:4.21::el9"],"versions":[{"version":"1785851359","lessThan":"*","versionType":"rpm","status":"unaffected"}]},{"vendor":"Red Hat","product":"Red Hat OpenShift Container Platform 4","defaultStatus":"affected","collectionURL":"https://access.redhat.com/downloads/content/package-browser/","packageName":"openshift4/ose-oauth-proxy","cpes":["cpe:/a:redhat:openshift:4"]}]
[{"vendor":"Red Hat","product":"Red Hat OpenShift Container Platform 4.20","defaultStatus":"affected","collectionURL":"https://catalog.redhat.com/software/containers/","packageName":"openshift4/ose-oauth-proxy-rhel9","cpes":["cpe:/a:redhat:openshift:4.20::el9"],"versions":[{"version":"1785833742","lessThan":"*","versionType":"rpm","status":"unaffected"}]},{"vendor":"Red Hat","product":"Red Hat OpenShift Container Platform 4.21","defaultStatus":"affected","collectionURL":"https://catalog.redhat.com/software/containers/","packageName":"openshift4/ose-oauth-proxy-rhel9","cpes":["cpe:/a:redhat:openshift:4.21::el9"],"versions":[{"version":"1785851359","lessThan":"*","versionType":"rpm","status":"unaffected"}]},{"vendor":"Red Hat","product":"Red Hat OpenShift Container Platform 4.22","defaultStatus":"affected","collectionURL":"https://catalog.redhat.com/software/containers/","packageName":"openshift4/ose-oauth-proxy-rhel9","cpes":["cpe:/a:redhat:openshift:4.22::el9"],"versions":[{"version":"1785885351","lessThan":"*","versionType":"rpm","status":"unaffected"}]},{"vendor":"Red Hat","product":"Red Hat OpenShift Container Platform 4","defaultStatus":"affected","collectionURL":"https://access.redhat.com/downloads/content/package-browser/","packageName":"openshift4/ose-oauth-proxy","cpes":["cpe:/a:redhat:openshift:4"]}]
CVE Modified by Red Hat, Inc.
8/11/2026 5:17:13 AM
Action
Type
Old Value
New Value
Added
Reference
https://access.redhat.com/errata/RHSA-2026:51025
Changed
Affected
[{"vendor":"Red Hat","product":"Red Hat OpenShift Container Platform 4","defaultStatus":"affected","collectionURL":"https://access.redhat.com/downloads/content/package-browser/","packageName":"openshift4/ose-oauth-proxy","cpes":["cpe:/a:redhat:openshift:4"]},{"vendor":"Red Hat","product":"Red Hat OpenShift Container Platform 4","defaultStatus":"affected","collectionURL":"https://access.redhat.com/downloads/content/package-browser/","packageName":"openshift4/ose-oauth-proxy-rhel9","cpes":["cpe:/a:redhat:openshift:4"]}]
[{"vendor":"Red Hat","product":"Red Hat OpenShift Container Platform 4.21","defaultStatus":"affected","collectionURL":"https://catalog.redhat.com/software/containers/","packageName":"openshift4/ose-oauth-proxy-rhel9","cpes":["cpe:/a:redhat:openshift:4.21::el9"],"versions":[{"version":"1785851359","lessThan":"*","versionType":"rpm","status":"unaffected"}]},{"vendor":"Red Hat","product":"Red Hat OpenShift Container Platform 4","defaultStatus":"affected","collectionURL":"https://access.redhat.com/downloads/content/package-browser/","packageName":"openshift4/ose-oauth-proxy","cpes":["cpe:/a:redhat:openshift:4"]}]
CVE Modified by CISA-ADP
7/28/2026 9:18:46 AM
Action
Type
Old Value
New Value
Added
SSVC
{"timestamp":"2026-07-28T13:02:35.727357Z","id":"CVE-2026-49332","options":[{"exploitation":"none"},{"automatable":"no"},{"technicalImpact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}
New CVE Received from Red Hat, Inc.
7/28/2026 9:18:46 AM
Action
Type
Old Value
New Value
Added
Description
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.
Added
CVSS V3.1
AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:L/A:N
Added
CWE
CWE-436
Added
Reference
https://access.redhat.com/security/cve/CVE-2026-49332
Added
Reference
https://bugzilla.redhat.com/show_bug.cgi?id=2483253
Added
Affected
[{"vendor":"Red Hat","product":"Red Hat OpenShift Container Platform 4","defaultStatus":"affected","collectionURL":"https://access.redhat.com/downloads/content/package-browser/","packageName":"openshift4/ose-oauth-proxy","cpes":["cpe:/a:redhat:openshift:4"]},{"vendor":"Red Hat","product":"Red Hat OpenShift Container Platform 4","defaultStatus":"affected","collectionURL":"https://access.redhat.com/downloads/content/package-browser/","packageName":"openshift4/ose-oauth-proxy-rhel9","cpes":["cpe:/a:redhat:openshift:4"]}]
Quick Info
CVE Dictionary Entry: CVE-2026-49332 NVD
Published Date: 07/28/2026 NVD
Last Modified: 08/16/2026
Source: Red Hat, Inc.
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