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.
Monitor this advisory for an available fix and review any installs of the affected package.
Local check
hol-guard supply-chain scanKeycloak: Unauthorized access via improper validation of encrypted SAML assertions affects org.keycloak:keycloak-services (maven), org.keycloak:keycloak-services (maven), org.keycloak:keycloak-services (maven). Severity is high. 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.
AI coding agents often install or upgrade packages automatically in maven. A high vulnerability in a dependency can be pulled into a project through a normal install or update without a human reviewing the change, expanding the blast radius from a single package to every agent workspace that depends on it.
| Package | Affected range | Fixed version |
|---|---|---|
| org.keycloak:keycloak-servicesmaven |
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.
Monitor this advisory for an available fix and review any installs of the affected package.
Local check
hol-guard supply-chain scanKeycloak: Unauthorized access via improper validation of encrypted SAML assertions affects org.keycloak:keycloak-services (maven), org.keycloak:keycloak-services (maven), org.keycloak:keycloak-services (maven). Severity is high. 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.
AI coding agents often install or upgrade packages automatically in maven. A high vulnerability in a dependency can be pulled into a project through a normal install or update without a human reviewing the change, expanding the blast radius from a single package to every agent workspace that depends on it.
| Package | Affected range | Fixed version |
|---|---|---|
| org.keycloak:keycloak-servicesmaven |
| <=26.2.5 |
| Not reported |
| org.keycloak:keycloak-servicesmaven | >=26.3.0,<=26.4.7 | Not reported |
|---|
| org.keycloak:keycloak-servicesmaven | >=26.5.0,<26.5.5 | Not reported |
|---|
Reported by GitHub Security Advisories (ghsa).
HOL Guard can help your team review package activity against supported protection paths.
Explore HOL Guard| <=26.2.5 |
| Not reported |
| org.keycloak:keycloak-servicesmaven | >=26.3.0,<=26.4.7 | Not reported |
|---|
| org.keycloak:keycloak-servicesmaven | >=26.5.0,<26.5.5 | Not reported |
|---|
Reported by GitHub Security Advisories (ghsa).
HOL Guard can help your team review package activity against supported protection paths.
Explore HOL Guard