CVE-2026-0707

MEDIUM
2026-01-08 [email protected] GHSA-gv94-wp4h-vv8p
5.3
CVSS 3.1
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CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
Low
Availability
None

Lifecycle Timeline

3
Patch Released
Apr 09, 2026 - 14:30 nvd
Patch available
Analysis Generated
Mar 12, 2026 - 21:54 vuln.today
CVE Published
Jan 08, 2026 - 04:15 nvd
MEDIUM 5.3

Tags

Information Disclosure Redhat

Description

A flaw was found in Keycloak. The Keycloak Authorization header parser is overly permissive regarding the formatting of the "Bearer" authentication scheme. It accepts non-standard characters (such as tabs) as separators and tolerates case variations that deviate from RFC 6750 specifications.

Analysis

Keycloak's Authorization header parser improperly tolerates non-RFC 6750 compliant formatting, including tabs and case variations in Bearer token authentication. This lax validation could enable attackers to bypass authentication mechanisms or manipulate token validation logic in applications relying on strict Bearer token parsing. …

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Remediation

Within 30 days: Identify affected systems and apply vendor patches as part of regular patch cycle. Monitor vendor channels for patch availability.

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Priority Score

27
Low Medium High Critical
KEV: 0
EPSS: +0.0
CVSS: +26
POC: 0

Vendor Status

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CVE-2026-0707 vulnerability details – vuln.today
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