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CVE-2026-47737

HIGH(7.5)

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

Risk Signal Score29/100 — MITTEL
  • CVSS 7.5 — Hoch
  • Weniger als 24 Stunden alt

Beschreibung

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.

GitHub Advisories

GHSA-2vqw-3mp8-cgmxHIGH

Puma PROXY Protocol v1 Accepts Repeated Protocol Headers on Persistent Connections

rubygems/puma→ 8.0.2
GitHub Advisory

Referenzen