CVE-2026-49329

CVE.org · Published

Record status: Published
Identifier year (not publication year): 2026
Source publication: Sep 1, 2026
Source updated: Oct 23, 2026
Imported by cveboard: Oct 24, 2026
Source snapshot: cve_2026-10-24_midnight_baseline · Oct 24, 2026

CNA source text (English)

Openshift/oauth-server: openshift/oauth-server: quadratic-time dos via accept-language header underscore bypass on unauthenticated login endpoints

A flaw was found in openshift/oauth-server. The OAuth login and error page endpoints pass the unauthenticated Accept-Language header to golang.org/x/text/language.ParseAcceptLanguage() without input validation. A bypass of the CVE-2022-32149 mitigation exists: the upstream guard counts only '-' characters but the internal BCP 47 scanner aliases '_' to '-' after the guard check. An unauthenticated attacker can send a crafted Accept-Language header using '_' separators to trigger quadratic-time parsing, consuming excessive CPU and denying authentication to all cluster users.

Scoped product and version facts

Fix information unknown; no fixed version is derived here. Missing information does not prove that no fix exists.

Exploitation unknown; this catalogue does not assess exploitation.

Red Hat OpenShift Container Platform 4.14

Vendor: Red Hat
Product: Red Hat OpenShift Container Platform 4.14
Platforms: Unknown
Default status: affected
Package: openshift4/ose-oauth-server-rhel8
Package collection: https://catalog.redhat.com/software/containers/

Red Hat OpenShift Container Platform 4.14 · Scoped product and version facts
Version (version)	Status (status)	Version scheme (versionType)	Exclusive end (lessThan)	Inclusive end (lessThanOrEqual)	Status changes (at → status)
1791839120	`unaffected`	rpm	*	Unavailable	None listed

Red Hat OpenShift Container Platform 4.15

Vendor: Red Hat
Product: Red Hat OpenShift Container Platform 4.15
Platforms: Unknown
Default status: affected
Package: openshift4/ose-oauth-server-rhel9
Package collection: https://catalog.redhat.com/software/containers/

Red Hat OpenShift Container Platform 4.15 · Scoped product and version facts
Version (version)	Status (status)	Version scheme (versionType)	Exclusive end (lessThan)	Inclusive end (lessThanOrEqual)	Status changes (at → status)
1791598539	`unaffected`	rpm	*	Unavailable	None listed

Red Hat OpenShift Container Platform 4.18

Vendor: Red Hat
Product: Red Hat OpenShift Container Platform 4.18
Platforms: Unknown
Default status: affected
Package: openshift4/ose-oauth-server-rhel9
Package collection: https://catalog.redhat.com/software/containers/

Red Hat OpenShift Container Platform 4.18 · Scoped product and version facts
Version (version)	Status (status)	Version scheme (versionType)	Exclusive end (lessThan)	Inclusive end (lessThanOrEqual)	Status changes (at → status)
1790882323	`unaffected`	rpm	*	Unavailable	None listed

Red Hat OpenShift Container Platform 4.19

Vendor: Red Hat
Product: Red Hat OpenShift Container Platform 4.19
Platforms: Unknown
Default status: affected
Package: openshift4/ose-oauth-server-rhel9
Package collection: https://catalog.redhat.com/software/containers/

Red Hat OpenShift Container Platform 4.19 · Scoped product and version facts
Version (version)	Status (status)	Version scheme (versionType)	Exclusive end (lessThan)	Inclusive end (lessThanOrEqual)	Status changes (at → status)
1790611633	`unaffected`	rpm	*	Unavailable	None listed

Red Hat OpenShift Container Platform 4.20

Vendor: Red Hat
Product: Red Hat OpenShift Container Platform 4.20
Platforms: Unknown
Default status: affected
Package: openshift4/ose-oauth-server-rhel9
Package collection: https://catalog.redhat.com/software/containers/

Red Hat OpenShift Container Platform 4.20 · Scoped product and version facts
Version (version)	Status (status)	Version scheme (versionType)	Exclusive end (lessThan)	Inclusive end (lessThanOrEqual)	Status changes (at → status)
1790702087	`unaffected`	rpm	*	Unavailable	None listed

Red Hat OpenShift Container Platform 4.21

Vendor: Red Hat
Product: Red Hat OpenShift Container Platform 4.21
Platforms: Unknown
Default status: affected
Package: openshift4/ose-oauth-server-rhel9
Package collection: https://catalog.redhat.com/software/containers/

Red Hat OpenShift Container Platform 4.21 · Scoped product and version facts
Version (version)	Status (status)	Version scheme (versionType)	Exclusive end (lessThan)	Inclusive end (lessThanOrEqual)	Status changes (at → status)
1790707106	`unaffected`	rpm	*	Unavailable	None listed

Red Hat OpenShift Container Platform 4.22

Vendor: Red Hat
Product: Red Hat OpenShift Container Platform 4.22
Platforms: Unknown
Default status: affected
Package: openshift4/ose-oauth-server-rhel9
Package collection: https://catalog.redhat.com/software/containers/

Red Hat OpenShift Container Platform 4.22 · Scoped product and version facts
Version (version)	Status (status)	Version scheme (versionType)	Exclusive end (lessThan)	Inclusive end (lessThanOrEqual)	Status changes (at → status)
1790713150	`unaffected`	rpm	*	Unavailable	None listed