CVE-2026-47737highCWE-290CWE-345

CVE-2026-47737: falha de alta gravidade em puma

Puma PROXY Protocol v1 Accepts Repeated Protocol Headers on Persistent Connections

Publicada em · Atualizada em

Seguir esta CVE+ Monitorar puma+ Monitorar puma

Aviso por e-mail quando ela entrar no KEV, ganhar PoC pública ou subir de nota.

21Vexday Risk Score

Sem sinal de exploração. Nenhum artefato público de exploração conhecido até agora.

ssvc Trackcvss 7.5epss 0.2%
Puma is a Ruby/Rack web server built for parallelism. From 5.5.0 until 7.2.1 and 8.0.2, Puma is vulnerable to source IP spoofing when set_remote_address proxy_protocol: :v1 is enabled and persistent connections are used because Puma incorrectly re-parses PROXY protocol headers after each keep-alive request on the same connection, allowing an attacker to inject a second PROXY header and overwrite REMOTE_ADDR. This issue is fixed in versions 7.2.1 and 8.0.2.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Produtos afetados
puma · puma
CVEs relacionadas — puma

No mesmo produto, das mais perigosas para as menos.

CVE-2020-11076HIGHHTTP Smuggling via Transfer-Encoding Header in PumaEPSS 4.1%CVE-2020-11077MEDIUMHTTP Smuggling via Transfer-Encoding Header in PumaEPSS 2.9%CVE-2022-24790CRITICALHTTP Request Smuggling in pumaEPSS 2.2%CVE-2022-23634HIGHInformation Exposure when using Puma with RailsEPSS 2.1%CVE-2019-16770MEDIUMPotential DOS attack in PumaEPSS 2.0%CVE-2021-29509HIGHKeepalive Connections Causing Denial Of Service in pumaEPSS 1.6%