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CVE-2026-77384

libp2p: Circuit relay v2 server reservation refresh leaks abort listeners and allows remote resource exhaustion PUBLISHED

Description (CNA)

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.

Affected (CNA)

Vendor / productVersions
libp2p / js-libp2paffected >= 2.1.5, < 4.2.9

CWE

CWE-400, CWE-772

References

ADP enrichment

CISA-ADP

No English description supplied.