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CVE-2026-47736

HIGH(7.5)

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

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, when PROXY protocol v1 support is enabled, Puma reads incoming bytes into an internal buffer while waiting for CRLF to determine whether a PROXY v1 line is present, allowing an attacker that continuously sends bytes without CRLF to cause unbounded in-process memory growth and additional CPU cost from repeatedly scanning the growing buffer. This issue is fixed in versions 7.2.1 and 8.0.2.

GitHub Advisories

GHSA-qpgp-93vx-g8v8HIGH

Puma PROXY Protocol v1 Parser Allows Remote Memory Exhaustion

rubygems/puma→ 8.0.2
GitHub Advisory

Referenzen