high6.5
CVE-2023-6841
Keycloak Denial of Service vulnerability
Impact
A denial of service vulnerability was found in keycloak where the amount of attributes per object is not limited, an attacker by sending repeated HTTP requests could cause a resource exhaustion when the application send back rows with long attribute values. The issue is fixed in Keycloak 24 with the introduction of the User Profile feature.
Affected packages
| Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|
| maven | org.keycloak:keycloak-core | < 24.0.0 | 24.0.0 |
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Redhat | Keycloak | All versions |
| Redhat | Single Sign-On | Version 7.0 |
Weakness classification
References
- NVD record
- CVE.org record
- GitHub advisory
- https://access.redhat.com/security/cve/CVE-2023-6841
- https://bugzilla.redhat.com/show_bug.cgi?id=2254714
- https://github.com/advisories/GHSA-w97f-w3hq-36g2
- https://nvd.nist.gov/vuln/detail/CVE-2023-6841
- https://github.com/keycloak/keycloak/issues/32837
- https://github.com/keycloak/keycloak/releases/tag/24.0.0