CVE-2026-31814

Source
https://cve.org/CVERecord?id=CVE-2026-31814
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-31814.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-31814
Aliases
Downstream
Published
2026-03-13T19:19:41.879Z
Modified
2026-04-10T05:42:09.089537Z
Severity
  • 8.7 (High) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N CVSS Calculator
Summary
Yamux remote Panic via malformed WindowUpdate credit
Details

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.

Database specific
{
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/31xxx/CVE-2026-31814.json",
    "cwe_ids": [
        "CWE-190"
    ],
    "cna_assigner": "GitHub_M"
}
References

Affected packages

Git / github.com/libp2p/rust-yamux

Affected ranges

Type
GIT
Repo
https://github.com/libp2p/rust-yamux
Events

Database specific

source
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-31814.json"