VDB
CVE-2026-0707
CVE-2026-0707
PUBLISHED
CVSS 5.300000190734863 MEDIUM
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.
EPSS 0.03% · 9.2th percentile
Risk Scores
CVSS 3.1
5.300000190734863
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
EPSS Score
0.03%
9.2th percentile
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Red Hat | Red Hat build of Keycloak 26.4 | 26.4.10-1 |
| Red Hat | Red Hat build of Keycloak 26.4 | 26.4-12 |
| Red Hat | Red Hat build of Keycloak 26.4 | 26.4-12 |
| Maven | org.keycloak:keycloak-parent | 0 |
| Red Hat | Red Hat build of Keycloak 26.4.10 |
Exploit Intelligence
- RHSA-2026:3947 (circl)
- RHSA-2026:3948 (circl)
- https://access.redhat.com/security/cve/CVE-2026-0707 (circl)
- RHBZ#2427768 (circl)
Timeline
- Jan 8, 2026 CVE Published
- Jan 8, 2026 EPSS Score
- Jan 8, 2026 CVE ID Reserved
- Jan 11, 2026 EPSS Score
- Jan 14, 2026 EPSS Score
- Jan 18, 2026 EPSS Score
- Jan 21, 2026 EPSS Score
- Jan 24, 2026 EPSS Score
- Jan 27, 2026 EPSS Score
- Jan 30, 2026 EPSS Score
- Feb 2, 2026 EPSS Score
- Feb 6, 2026 EPSS Score
References
- RHSA-2026:3947 vendor-advisory
- RHSA-2026:3948 vendor-advisory
- https://access.redhat.com/security/cve/CVE-2026-0707 vdb
- RHBZ#2427768 issue
- https://nvd.nist.gov/vuln/detail/CVE-2026-0707 advisory
- https://github.com/keycloak/keycloak package