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CVE-2026-2092

Keycloak-services: keycloak: unauthorized access via improper validation of encrypted saml assertions

Published: Mar 18, 2026Updated: Mar 18, 2026 Sources: CVE List NVDCWE-1287
NVD MITRE
7.7CVSSHIGH
EPSS Score
0.2%
Top 85.7%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Workaround Only

Description

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 Vector Breakdown

AV:NAC:HPR:LUI:NS:CC:HI:LA:L
Exploitability
AV:NAttack Vector
Network
AC:HAttack Complexity
High
PR:LPrivileges Required
Low
UI:NUser Interaction
None
Scope
S:CScope
Changed
Impact
C:HConfidentiality
High
I:LIntegrity
Low
A:LAvailability
Low
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Weaknesses

CWE-1287

Affected Products

Red Hat build of Keycloak 26.2Red Hat
On-prem
Operating Systems / linux-distro
Red Hat build of Keycloak 26.2.14Red Hat
On-prem
Operating Systems / linux-distro
Red Hat build of Keycloak 26.4Red Hat
On-premWeb App
Web & CMS Plugins
Red Hat build of Keycloak 26.4.10Red Hat
On-prem
Operating Systems / linux-distro
red hatcommercialUSOperating Systemsaka red hat

Exploitability

Workaround Available

References

https://access.redhat.com/errata/RHSA-2026:3925
access.redhat.com
https://access.redhat.com/errata/RHSA-2026:3926
access.redhat.com
https://access.redhat.com/errata/RHSA-2026:3947
access.redhat.com
and 3 more references View all →

Timeline

Published
Mar 18, 2026
Last Updated
Mar 18, 2026

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