CVE-2026-104380 (GCVE-0-2026-104380)

Vulnerability from cvelistv5 – Published: 2026-10-06 01:13 – Updated: 2026-10-06 05:07
VLAI
Title
Punk versions from 0.48 before 0.55 for Perl route Extended CONNECT requests to any GET route without an Origin check in ps_serve_one
Summary
Punk versions from 0.48 before 0.55 for Perl route Extended CONNECT requests to any GET route without an Origin check in ps_serve_one. On HTTP/2 and HTTP/3 a WebSocket handshake arrives as an Extended CONNECT, which is matched as a GET and so reaches every GET route, API operation and mount. The Origin check runs only when a websocket route matches. On this transport the handler's status is the handshake response, and a 2xx accepts it. A cross-origin page can open a WebSocket to any path and learn from its open or error event whether that path returns 2xx.
Severity
No CVSS data available.
CWE
  • CWE-1385 - Missing Origin Validation in WebSockets
Assigner
References
Impacted products
Vendor Product Version CPE status
Affected: 0.48 , < 0.55 (custom)
Show details on NVD website
To clipboard 

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