Keycloak-services: keycloak: unauthorized access via improper validation of encrypted saml assertions
21Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 7.7epss 0.3%
exploitation probability
0.3%top 76% of all CVEs
observed exploitation
nono source reports it
A flaw was found in Keycloak. Keycloak's Security Assertion Markup Language (SAML) broker endpoint does not properly validate encrypted assertions when the overall SAML response is not signed. An attacker with a valid signed SAML assertion can exploit this by crafting a malicious SAML response. This allows the attacker to inject an encrypted assertion for an arbitrary principal, leading to unauthorized access and potential information disclosure.
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:L/A:L
Affected products
Red Hat · Red Hat build of Keycloak 26.2Red Hat · Red Hat build of Keycloak 26.2.14Red Hat · Red Hat build of Keycloak 26.4Red Hat · Red Hat build of Keycloak 26.4.10References
https://access.redhat.com/errata/RHSA-2026:3925https://access.redhat.com/errata/RHSA-2026:3926https://access.redhat.com/errata/RHSA-2026:3947https://access.redhat.com/errata/RHSA-2026:3948https://access.redhat.com/security/cve/CVE-2026-2092https://bugzilla.redhat.com/show_bug.cgi?id=2437296https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-2092.json