CVE-2026-59725 | BDVDB-2026-346356 Detail

Description#

Socket.IO enables bidirectional and low-latency communication for every platform. From 4.1.0 before 6.6.7, Engine.IO protocol v4 polling transport does not properly close the HTTP response for invalid binary POST requests with Content-Type: application/octet-stream, allowing an unauthenticated attacker to exhaust server-side connections and sockets. This issue is fixed in version 6.6.7.

Impact#

Weaknesses#

References#

Exploit#

History#

1. Version 12026-07-08Record published in the CVE List.
2. Version 22026-10-14Most recent update recorded in the CVE List.