CVE-2026-31814

CVSS Score & Metrics

Base Score

7.5 / 10

Vector String

                                        CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H                                    

Vulnerability 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.

Vulnerability Details

Published Date

March 13, 2026

Last Modified

March 19, 2026

CWE ID

CWE-190

Source

NVD

Vendor

libp2p

Product

rust-yamux

External References

https://github.com/libp2p/rust-yamux/security/advisories/GHSA-4w32-2493-32g7

CVSS Score & Metrics

Vulnerability Description

Vulnerability Details

External References

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