GHSA-p5mv-gj8j-xqgf
Keycloak: Denial of Service via specially crafted SAML input
En bref
- Publiée
- Mise à jour
- CVE
- CVE-2026-7307
- Alias
- BIT-keycloak-2026-7307
- CVSS_V3
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Description
A flaw was found in Keycloak. A remote, unauthenticated attacker can send a specially crafted XML input to the Security Assertion Markup Language (SAML) endpoint. This malicious input can cause high CPU usage and worker thread starvation, leading to a Denial of Service (DoS) where the server becomes unavailable.
Paquets affectés
| Paquet | Versions |
|---|---|
| Maven · org.keycloak:keycloak-saml-core | introduced 0, fixed 26.6.2 |
Références
- https://nvd.nist.gov/vuln/detail/CVE-2026-7307 ADVISORY
- https://github.com/keycloak/keycloak/pull/49119 WEB
- https://github.com/keycloak/keycloak/commit/be84d28ce4c69c038d542f11405d5ede1d61f4a9 WEB
- https://access.redhat.com/errata/RHSA-2026:19594 WEB
- https://access.redhat.com/errata/RHSA-2026:19595 WEB
- https://access.redhat.com/errata/RHSA-2026:19596 WEB
- https://access.redhat.com/errata/RHSA-2026:19597 WEB
- https://access.redhat.com/security/cve/CVE-2026-7307 WEB
- https://bugzilla.redhat.com/show_bug.cgi?id=2476526 WEB
- https://github.com/keycloak/keycloak PACKAGE
- https://github.com/keycloak/keycloak/releases/tag/26.6.2 WEB
Sources
| Source | Licence |
|---|---|
| OSV.dev | CC-BY 4.0 — GitHub Advisory Database |