Red Hat Red Hat Single Sign-On 7.6 for RHEL 9

• CVE-2026-7507 High 7.5 Org.keycloak/keycloak-services: session fixation in oidc login flow that can lead to account takeover 0.8%
• CVE-2026-7307 High 7.5 Keycloak: keycloak: denial of service via specially crafted saml input 0.9%
• CVE-2026-4634 High 7.5 Keycloak: keycloak: denial of service via excessive processing of openid connect scope parameters 0.6%
• CVE-2026-2575 Medium 5.3 Keycloak: keycloak: denial of service due to excessive samlrequest decompression 0.7%
• CVE-2026-2092 High 7.7 Keycloak-services: keycloak: unauthorized access via improper validation of encrypted saml assertions 0.4%
• CVE-2026-0603 High 8.3 Org.hibernate/hibernate-core: hibernate: information disclosure and data deletion via second-order sql injection 1.0%
• CVE-2025-12543 Critical 9.6 Undertow-core: undertow http server fails to reject malformed host headers leading to potential cache poisoning and ssrf 1.3%
• CVE-2025-9784 High 7.5 Undertow: undertow madeyoureset http/2 ddos vulnerability 2.3%
• CVE-2024-7341 High 7.1 Wildfly-elytron: org.keycloak/keycloak-services: session fixation in elytron saml adapters 0.8%
• CVE-2024-4629 Medium 6.5 Keycloak: potential bypass of brute force protection 0.8%
• CVE-2024-5967 Low 2.7 Keycloak: leak of configured ldap bind credentials through the keycloak admin console 0.6%
• CVE-2024-4540 High 7.5 Keycloak: exposure of sensitive information in pushed authorization requests (par) kc_restart cookie 0.6%
• CVE-2023-6544 Medium 5.4 Keycloak: authorization bypass 1.1%
• CVE-2023-6484 Medium 5.3 Keycloak: log injection during webauthn authentication or registration 1.0%
• CVE-2024-1249 High 7.4 Keycloak: org.keycloak.protocol.oidc: unvalidated cross-origin messages in checkloginiframe leads to ddos 0.4%
• CVE-2024-1132 High 8.1 Keycloak: path transversal in redirection validation 1.6%
• CVE-2024-1635 High 7.5 Undertow: out-of-memory error after several closed connections with wildfly-http-client protocol 4.6%
• CVE-2023-6291 High 7.1 Keycloak: redirect_uri validation bypass 0.9%
• CVE-2023-2585 Low 3.5 Keycloak: client access via device auth request spoof 0.7%
• CVE-2023-6927 Medium 4.6 Keycloak: open redirect via "form_post.jwt" jarm response mode 1.1%
• CVE-2023-6134 Medium 4.6 Keycloak: reflected xss via wildcard in oidc redirect_uri 1.3%
• CVE-2023-6563 High 7.7 Keycloak: offline session token dos 1.2%
• CVE-2023-2422 Medium 5.5 Keycloak: oauth client impersonation 0.5%
• CVE-2023-3223 High 7.5 Undertow: outofmemoryerror due to @multipartconfig handling 2.7%
• CVE-2022-4137 High 8.1 Keycloak: reflected xss attack 1.2%
• CVE-2022-3916 Medium 6.8 Keycloak: session takeover with oidc offline refreshtokens 1.0%
• CVE-2022-1438 Medium 6.4 Keycloak: xss on impersonation under specific circumstances 0.7%
• CVE-2023-1108 High 7.5 Undertow: infinite loop in sslconduit during close 1.8%