CVE-2023-6841
MEDIUM6.5EPSS 0.61%Keycloak Denial of Service vulnerability
Published: 9/10/2024Modified: 2/4/2026
Description
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 (1)
- Maven/org.keycloak:keycloak-corefrom 0, < 24.0.0
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 4.0 | — | CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N |
| osv | CVSS 3.1 | MEDIUM6.5 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
References (6)
- ADVISORYhttps://nvd.nist.gov/vuln/detail/CVE-2023-6841
- PATCHhttps://github.com/keycloak/keycloak
- WEBhttps://access.redhat.com/security/cve/CVE-2023-6841
- WEBhttps://bugzilla.redhat.com/show_bug.cgi?id=2254714
- WEBhttps://github.com/keycloak/keycloak/issues/32837
- WEBhttps://github.com/keycloak/keycloak/releases/tag/24.0.0