Improper Verification of SAML Responses Leading to Privilege Escalation in Keycloak
A flaw exists in the SAML signature validation method within the Keycloak XMLSignatureUtil class. The method incorrectly determines whether a SAML signature is for the full document or only for specific assertions based on the position of the signature in the XML document, rather than the Reference element used to specify the signed element. This flaw allows attackers to create crafted responses that can bypass the validation, potentially leading to privilege escalation or impersonation attacks.
Affected software
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| Platform | Package | Vulnerable versions | Fixed in |
|---|---|---|---|
| Java / Kotlin (Maven) | org.keycloak:keycloak-saml-core | < 22.0.13, >= 23.0.0, < 24.0.8, >= 25.0.0, < 25.0.6 | 22.0.13, 24.0.8, 25.0.6 |
References
- https://github.com/keycloak/keycloak/security/advisories/GHSA-xgfv-xpx8-qhcr
- https://nvd.nist.gov/vuln/detail/CVE-2024-8698
- https://github.com/keycloak/keycloak/releases/tag/25.0.6
- https://github.com/keycloak/keycloak
- https://bugzilla.redhat.com/show_bug.cgi?id=2311641
- https://access.redhat.com/security/cve/CVE-2024-8698
- https://access.redhat.com/errata/RHSA-2024:8826
- https://access.redhat.com/errata/RHSA-2024:8824
- https://access.redhat.com/errata/RHSA-2024:8823
- https://access.redhat.com/errata/RHSA-2024:6890
- https://access.redhat.com/errata/RHSA-2024:6889
- https://access.redhat.com/errata/RHSA-2024:6888
- https://access.redhat.com/errata/RHSA-2024:6887
- https://access.redhat.com/errata/RHSA-2024:6886
- https://access.redhat.com/errata/RHSA-2024:6882
- https://access.redhat.com/errata/RHSA-2024:6880
- https://access.redhat.com/errata/RHSA-2024:6879
- https://access.redhat.com/errata/RHSA-2024:6878
- CVSS vector
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:L/A:L- Weakness (CWE)
CWE-347- Platform
- Java / Kotlin (Maven)
- Package
org.keycloak:keycloak-saml-core- Disclosed
- 14.10.2024
- Updated
- 11.10.2026 13:20
Sources and licenses
OSV / GitHub Advisory Database - GHSA-xgfv-xpx8-qhcr - CC BY 4.0
Vulnerability history: org.keycloak:keycloak-saml-core
All published vulnerabilities of this package (Java / Kotlin (Maven)), newest first. Shows whether this is a one-off slip or a package that needs watching.
- Total entries
- 4
- First → latest
- 04.2022 05.2026
- Without a fix
- 0
- Exploited in attacks
- 0
Severity breakdown
- High 3
- Medium 1
Disclosures per year
- 2022: 1
- 2023: 0
- 2024: 1
- 2025: 0
- 2026: 2
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