CVE-2026-31814
Publication date 13 March 2026
Last updated 18 March 2026
Ubuntu priority
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.
Status
| Package | Ubuntu Release | Status |
|---|---|---|
| rust-yamux | 25.10 questing |
Needs evaluation
|
| 24.04 LTS noble | Not in release | |
| 22.04 LTS jammy | Not in release |