libp2p is a JavaScript implementation of the libp2p networking stack. Prior to version 4.2.9, the reservation refresh path in reservation-store.ts reuses the same retimeableSignal but unconditionally registers another abort listener on every refresh. As a result, a remote peer can repeatedly send valid RESERVE requests for the same reservation, causing unbounded listener and closure growth in @libp2p/circuit-relay-v2 relay servers and leading to denial of service. This issue is fixed in version 4.2.9.
{
"cna_assigner": "GitHub_M",
"cwe_ids": [
"CWE-400",
"CWE-772"
],
"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/77xxx/CVE-2026-77384.json"
}{
"extracted_events": [
{
"range": [
{
"introduced": "2.1.5"
},
{
"fixed": "4.2.9"
}
],
"source": "AFFECTED_FIELD",
"strategy": "StringRangeExpression"
},
{
"range": [
{
"fixed": "4bb8fbe8d3f3590e4af51a1f5f7de56fffa5804d"
}
],
"source": "REFERENCES_COMMIT"
},
{
"original_tag": "circuit-relay-v2-v4.2.9",
"range": [
{
"fixed": "cf0dbb38a2bc86e4346660c804a873fefbbeab49"
}
],
"source": "REFERENCES_TAG"
}
]
}