Security Advisory

CVE-2026-31814

CVE vulnerability detail — eXtreme Datacenter Security Operations

Published 2026-03-13 19:19:41

Last updated 2026-03-13 19:38:02

Assigner GitHub_M

State PUBLISHED

Description

Yamux is a stream multiplexer over reliable, ordered connections such as TCP/IP. From 0.13.0 to before 0.13.9, a specially crafted WindowUpdate can cause arithmetic overflow in send-window accounting, which triggers a panic in the connection state machine. This is remotely reachable over a normal network connection and does not require authentication. This vulnerability is fixed in 0.13.9.

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