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OpenAdvisories
High · 7.5 CVE-2026-89146 EUVD-2026-76035GHSA-gh9c-4324-26cm

libp2p-rendezvous through 0.17.1 Denial of Service via Unbounded Registration TTL in Discovery Responses

Published Sep 11, 2026 · Updated Sep 24, 2026 · Assigned by VulnCheck

Description

libp2p-rendezvous through 0.17.1 fails to validate registration TTL values in discovery responses, allowing attackers to trigger timer arithmetic overflow. A malicious rendezvous server can send a discovery response with an unbounded TTL value that causes the client node process to panic when computing the expiry timer.

Affected products

VendorProductAffectedFixed
libp2p libp2p-rendezvous ≤ 0.17.1 —

References