Apache Kafka: Potential incorrect access control during migration from ZK mode to KRaft mode
While an Apache Kafka cluster is being migrated from ZooKeeper mode to KRaft mode, in some cases ACLs will not be correctly enforced.
Two preconditions are needed to trigger the bug:
- The administrator decides to remove an ACL
- The resource associated with the removed ACL continues to have two or more other ACLs associated with it after the removal.
When those two preconditions are met, Kafka will treat the resource as if it had only one ACL associated with it after the removal, rather than the two or more that would be correct.
The incorrect condition is cleared by removing all brokers in ZK mode, or by adding a new ACL to the affected resource. Once the migration is completed, there is no metadata loss (the ACLs all remain).
The full impact depends on the ACLs in use. If only ALLOW ACLs were configured during the migration, the impact would be limited to availability impact. if DENY ACLs were configured, the impact could include confidentiality and integrity impact depending on the ACLs configured, as the DENY ACLs might be ignored due to this vulnerability during the migration period.
Software afectado
Haz clic en una tecnología para ver todas sus vulnerabilidades.
| Plataforma | Paquete | Versiones vulnerables | Corregida en |
|---|---|---|---|
| Java / Kotlin (Maven) | org.apache.kafka:kafka-metadata | >= 3.5.0, < 3.6.2 | 3.6.2 |
Referencias
- https://nvd.nist.gov/vuln/detail/CVE-2024-27309
- https://github.com/apache/kafka/commit/c000b1fae2bd7d4b76713a53508f128a13431ab6
- https://github.com/apache/kafka
- https://lists.apache.org/thread/6536rmzyg076lzzdw2xdktvnz163mjpy
- https://security.netapp.com/advisory/ntap-20240705-0002
- http://www.openwall.com/lists/oss-security/2024/04/12/3
- Vector CVSS
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N- Debilidad (CWE)
CWE-863- Plataforma
- Java / Kotlin (Maven)
- Paquete
org.apache.kafka:kafka-metadata- Publicada
- 12.04.2024
- Actualizado
- 11.10.2026 12:22
Fuentes y licencias
OSV / GitHub Advisory Database - GHSA-79vv-vp32-gpp7 - CC BY 4.0
Historial de vulnerabilidades: org.apache.kafka:kafka-metadata
Todas las vulnerabilidades publicadas de este paquete (Java / Kotlin (Maven)), de la más reciente a la más antigua. Muestra si es un fallo aislado o un paquete que hay que vigilar.
Esta es la única vulnerabilidad conocida de este paquete.
Identifica las vulnerabilidades de tu aplicación
Con la integración de DockRay y el inventario de software activado, DockRay compara las versiones notificadas de los componentes con las vulnerabilidades conocidas y avisa de las coincidencias confirmadas. La cobertura depende de la tecnología compatible y de los avisos disponibles.