CVE-2026-0707

MediumCVSS 5.3/10Last modified Jun 17, 2026

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.

Metrics

CVSS 3.1 5.3/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

Weakness enumeration

CWE-551

Affected software

No affected versions have been published.

Timeline

Published: Jan 8, 2026
Last modified: Jun 17, 2026
NVD status: Deferred

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