CyberRota Analysis
This is a medium severity vulnerability with a CVSS score of 5.9. It may be remotely exploitable.
CVE
CVE-2026-9793
Severity
MEDIUM
CVSS
5.9
EPSS
0.12%
Original NVD Description
A flaw was found in Keycloak. When a JSON Web Encryption (JWE) encrypted request object is submitted, Keycloak may incorrectly process unsigned claims if the decrypted content is raw JSON, bypassing the configured signature policy. This allows a remote attacker to submit unauthorized claims, leading to a compromise of data integrity within the OpenID Connect (OIDC) authorization flow. While a redirect URI allowlist acts as a compensating control, this vulnerability violates OIDC Core and Financial-grade API (FAPI) signing requirements.
Related CVEs
Other vulnerabilities affecting the same vendor(s)