CVE-2026-89146

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.

CVSS v3 7.5 HIGH

7.5^/10

CVSS v3 : HIGH

Vector :

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://docs.rs/crate/libp2p-rendezvous/0.17.1/source/src/client.rs
https://gist.github.com/thesmartshadow/25ef03f7ebbd12118a9d27695c885989
https://github.com/libp2p/rust-libp2p
https://www.vulncheck.com/advisories/libp2p-rendezvous-through-0.17.1-denial-of-service-via-unbounded-registration-ttl-in-discovery-responses
https://gist.github.com/thesmartshadow/25ef03f7ebbd12118a9d27695c885989

Configurations

No configuration.

History

No history.

Information

Published : 2026-09-11 11:16

Updated : 2026-09-11 19:17

NVD link : CVE-2026-89146

Mitre link : CVE-2026-89146

CVE.ORG link : CVE-2026-89146

JSON object : View

Products Affected

No product.

CWE

CWE-190

Integer Overflow or Wraparound

CWE-617

Reachable Assertion

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