7.5
High
CVE-2026-7307 A flaw was found in Keycloak
Description
A flaw was found in Keycloak. A remote, unauthenticated attacker can send a specially crafted XML input to the Security Assertion Markup Language (SAML) endpoint. This malicious input can cause high CPU usage and worker thread starvation, leading to a Denial of Service (DoS) where the server becomes unavailable.
Affected products and versions
| Product | Affected versions | Fixed in |
|---|---|---|
| Red Hat Build of Keycloak | Versions not published | |
| Red Hat build of Keycloak 26.2.16 | Versions not published | |
| Red Hat build of Keycloak 26.4 26.4 | earliest → < 26.4-17 | 26.4-17 |
| Red Hat build of Keycloak 26.2 26.2 | earliest → < 26.2-21 | 26.2-21 |
| Red Hat build of Keycloak 26.4.12 | Versions not published | |
| Red Hat Single Sign-On 7 | Versions not published | |
| Red Hat Single Sign-On 7.6.13 | Versions not published | |
| RHEL-8 based Middleware Containers 7.6 | earliest → < 7.6-85 | 7.6-85 |
| Red Hat Single Sign-On 7.6 for RHEL 8 | Versions not published |
Show the 2 other branches Hide the 2 other branches
| Product | Affected versions | Fixed in |
|---|---|---|
| Red Hat Single Sign-On 7.6 for RHEL 9 | Versions not published | |
| Red Hat Single Sign-On 7.6 for RHEL 7 | Versions not published |
Other CVEs of Red Hat Build of Keycloak
The 277 CVEs of Red Hat Build of Keycloak →
CVE-2026-120984
Keycloak-services: keycloak-services: manage-clients to arbitrary code execution through inline javascript policy import
9.1
Critical
CVE-2026-9797
Keycloak: keycloak: privilege escalation via client authentication manipulation by an authenticated administrator
6.5
Medium
CVE-2026-97848
Keycloak-services: keycloak-services: protocol mapper with jsontype=json bypasses token sanitization
6.5
Medium
CVE-2026-97367
Keycloak-services: keycloak-services: dcr azp and sid claim substitution allows account rest session takeover
6.4
Medium