Vulnerability 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.
CVSS Score
HIGH
Related Weaknesses (CWE)
References
- https://github.com/libp2p/js-libp2p/commit/4bb8fbe8d3f3590e4af51a1f5f7de56fffa58
- https://github.com/libp2p/js-libp2p/releases/tag/circuit-relay-v2-v4.2.9
- https://github.com/libp2p/js-libp2p/security/advisories/GHSA-x787-gh7p-hmq7
- https://github.com/libp2p/js-libp2p/security/advisories/GHSA-x787-gh7p-hmq7
FAQ
What is CVE-2026-77384?
CVE-2026-77384 is a vulnerability with a CVSS score of 7.5 (HIGH). 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 ...
How severe is CVE-2026-77384?
CVE-2026-77384 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-77384?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.