PT-2026-84296 · Red Hat · Red Hat Openshift Container Platform 4
CVE-2026-49329
·
Published
2026-09-01
·
Updated
2026-09-01
CVSS v3.1
7.5
High
| Vector | AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
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.
Fix
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Weakness Enumeration
Related Identifiers
Affected Products
Red Hat Openshift Container Platform 4