QwikSec

Security Database

CVE

CWE

Training

CVE Database
/

CVE-2026-0707

Back to search

CVE-2026-0707

Published: Jan 8, 2026

Modified: Mar 6, 2026

PUBLISHED

CVSS v3.1

5.3

MEDIUM

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.

VendorProductVersions

Red Hat

Red Hat build of Keycloak 26.4

unaffected
26.4.10-1 - < *

Red Hat

Red Hat build of Keycloak 26.4

unaffected
26.4-12 - < *

Red Hat

Red Hat build of Keycloak 26.4

unaffected
26.4-12 - < *

Red Hat

Red Hat build of Keycloak 26.4.10

All versions

Weaknesses (CWE)

CWE-551

CVSS v3.1 Details

CVSS v3.1 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

References

RHSA-2026:3947
vendor-advisory
x_refsource_REDHAT
RHSA-2026:3948
vendor-advisory
x_refsource_REDHAT
RHBZ#2427768
issue-tracking
x_refsource_REDHAT

Security Training

Train your team to recognize and prevent security threats with our comprehensive security awareness program.

Start Training

Vulnerability Scanning

Discover vulnerabilities in your applications and infrastructure before attackers do.

Scan Now