PT-2026-81042 · Libp2P · Libp2P
CVE-2026-77384
·
Published
2026-08-24
·
Updated
2026-08-25
CVSS v3.1
7.5
High
| Vector | AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
Name of the Vulnerable Software and Affected Versions
libp2p versions prior to 4.2.9
Description
In the reservation refresh path within
reservation-store.ts, the software reuses the same retimeableSignal but unconditionally registers a new abort listener during every refresh. A remote peer can exploit this by repeatedly sending valid RESERVE requests for the same reservation, which causes unbounded growth of listeners and closures in @libp2p/circuit-relay-v2 relay servers, resulting in a denial of service.Recommendations
Update to version 4.2.9.
Exploit
Fix
DoS
Resource Exhaustion
Missing Release of Resource after Effective Lifetime
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Related Identifiers
Affected Products
Libp2P