https://vulnerability.circl.lu/rss/recent/all/10 Most recent entries from all 2026-09-29T22:05:51.653630+00:00 Vulnerability-Lookup info@circl.lu python-feedgen Contains only the most 10 recent entries. https://vulnerability.circl.lu/vuln/cve-2026-47736 CVE-2026-47736 — Puma PROXY Protocol v1 Parser Allows Remote Memory Exhaustion 2026-09-29T22:05:53.181421+00:00

Affected: puma

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.