CVE-2026-31814 — Yamux remote Panic via malformed WindowUpdate credit
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 …
Published: 2026-03-13 · CVSS: 8.7 · CVSS 4.0
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.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7