Bug 2427768 (CVE-2026-0707) - CVE-2026-0707 keycloak: Keycloak Authorization Header Parsing Leading to Potential Security Control Bypass
Summary: CVE-2026-0707 keycloak: Keycloak Authorization Header Parsing Leading to Pote...
Keywords:
Status: NEW
Alias: CVE-2026-0707
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-01-08 02:54 UTC by OSIDB Bzimport
Modified: 2026-01-08 02:57 UTC (History)
8 users (show)

Fixed In Version:
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Description OSIDB Bzimport 2026-01-08 02:54:12 UTC 
Keycloak’s authentication pipeline excessively tolerates non-standard Bearer token formats (case variations, Tab characters, multiple spaces, mixed whitespace) in the Authorization header, creating inconsistencies with front-end security controls (WAF/proxies) and enabling potential bypass risks.
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