CVE-2026-24281

HIGH

7.4

Descripcion

Hostname verification in Apache ZooKeeper ZKTrustManager falls back to reverse DNS (PTR) when IP SAN validation fails, allowing attackers who control or spoof PTR records to impersonate ZooKeeper servers or clients with a valid certificate for the PTR name. It's important to note that attacker must present a certificate which is trusted by ZKTrustManager which makes the attack vector harder to exploit. Users are recommended to upgrade to version 3.8.6 or 3.9.5, which fixes this issue by introducing a new configuration option to disable reverse DNS lookup in client and quorum protocols.

Detalles CVE

Puntuacion CVSS v3.17.4

SeveridadHIGH

Vector CVSSCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N

Vector de ataqueNETWORK

ComplejidadHIGH

Privilegios requeridosNONE

Interaccion usuarioNONE

Publicado3/7/2026

Ultima modificacion3/10/2026

Fuentenvd

Avistamientos honeypot0

Productos afectados

apache:zookeeper

Debilidades (CWE)

CWE-295CWE-350CWE-295

Referencias

https://lists.apache.org/thread/088ddsbrzhd5lxzbqf5n24yg0mwh9jt2(security@apache.org)

http://www.openwall.com/lists/oss-security/2026/03/07/4(af854a3a-2127-422b-91ae-364da2661108)

Correlaciones IOC

Sin correlaciones registradas

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