CyberRota Analysis
AI-GeneratedPuma versions 5.5.0 through 7.2.1 and 8.0.2 are vulnerable when PROXY protocol v1 support is enabled, allowing attackers to exploit unbounded memory growth and increased CPU usage by sending continuous bytes without CRLF. This vulnerability poses a significant risk of denial-of-service conditions due to resource exhaustion. Organizations using affected Puma versions should prioritize upgrading to the patched releases (7.2.1 or 8.0.2) to mitigate these risks.
Public Exploit Signal
A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.
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Original NVD Description
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.