CVE-2026-77384 - libp2p: Circuit relay v2 server reservation refresh leaks abort listeners and allows remote resource exhaustion

CVE-2026-77384 - libp2p: Circuit relay v2 server reservation refresh leaks abort listeners and allows remote resource exhaustion

https://cvefeed.io/rssfeed/latest.atom / Tue, 08/25/2026 - 04:28
CVE ID :CVE-2026-77384
Published : Aug. 24, 2026, 10:17 p.m. | 2 hours, 11 minutes ago
Description :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.
Severity: 7.5 | HIGH
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