7.5
CVE-2026-4634
- EPSS 0.08%
- Veröffentlicht 02.04.2026 12:44:53
- Zuletzt bearbeitet 16.04.2026 20:50:10
- Quelle secalert@redhat.com
- CVE-Watchlists
- Unerledigt
Keycloak: keycloak: denial of service via excessive processing of openid connect scope parameters
A flaw was found in Keycloak. An unauthenticated attacker can exploit this vulnerability by sending a specially crafted POST request with an excessively long scope parameter to the OpenID Connect (OIDC) token endpoint. This leads to high resource consumption and prolonged processing times, ultimately resulting in a Denial of Service (DoS) for the Keycloak server.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Redhat ≫ Build Of Keycloak Version- SwEditiontext-only
Redhat ≫ Build Of Keycloak Version26.2 SwEditiontext-only
Redhat ≫ Build Of Keycloak Version26.2.15 SwEditiontext-only
Redhat ≫ Build Of Keycloak Version26.4 SwEditiontext-only
Redhat ≫ Build Of Keycloak Version26.4.11 SwEditiontext-only
VulnDex Vulnerability Enrichment
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Login| Typ | Quelle | Score | Percentile |
|---|---|---|---|
| EPSS | FIRST.org | 0.08% | 0.23 |
| Quelle | Base Score | Exploit Score | Impact Score | Vector String |
|---|---|---|---|---|
| secalert@redhat.com | 7.5 | 3.9 | 3.6 |
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
|
CWE-1050 Excessive Platform Resource Consumption within a Loop
The product has a loop body or loop condition that contains a control element that directly or indirectly consumes platform resources, e.g. messaging, sessions, locks, or file descriptors.