CVE-2026-0707

MEDIUM

Keycloak - Auth Bypass

Title source: llm

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.

References (4)

Scores

CVSS v3 5.3
EPSS 0.0003
EPSS Percentile 7.3%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

Classification

CWE
CWE-551
Status draft

Affected Products (1)

org.keycloak/keycloak-parent Maven

Timeline

Published Jan 08, 2026
Tracked Since Feb 18, 2026