CVE-2026-32314

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Source
https://cve.org/CVERecord?id=CVE-2026-32314
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-32314.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-32314
Aliases
Downstream
Published
2026-03-13T19:53:08.823Z
Modified
2026-04-10T05:42:22.922566Z
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 Data frame with SYN set and len = 262145
Details

Yamux is a stream multiplexer over reliable, ordered connections such as TCP/IP. Prior to 0.13.10, the Rust implementation of Yamux can panic when processing a crafted inbound Data frame that sets SYN and uses a body length greater than DEFAULT_CREDIT (e.g. 262145). On the first packet of a new inbound stream, stream state is created and a receiver is queued before oversized-body validation completes. When validation fails, the temporary stream is dropped and cleanup may call remove(...).expect("stream not found"), triggering a panic in the connection state machine. This is remotely reachable over a normal Yamux session and does not require authentication. This vulnerability is fixed in 0.13.10.

Database specific 
{
    "cna_assigner": "GitHub_M",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/32xxx/CVE-2026-32314.json",
    "cwe_ids": [
        "CWE-248"
    ]
}
References

Affected packages

Git / github.com/libp2p/rust-yamux

Affected ranges

Type
GIT
Repo
https://github.com/libp2p/rust-yamux
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
70db05dc63e8368bd0559a5ec0dba6e5fc2bdd41
Database specific 
{
    "versions": [
        {
            "introduced": "0"
        },
        {
            "fixed": "0.13.10"
        }
    ]
}

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-32314.json"