CVE-2026-24281

HIGH

7.4

Descricao

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.

Detalhes CVE

Pontuacao CVSS v3.17.4

SeveridadeHIGH

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

Vetor de ataqueNETWORK

ComplexidadeHIGH

Privilegios necessariosNONE

Interacao do usuarioNONE

Publicado3/7/2026

Ultima modificacao3/10/2026

Fontenvd

Avistamentos honeypot0

Produtos afetados

apache:zookeeper

Fraquezas (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)

Correlacoes IOC

Sem correlacoes registradas

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