CVE-2026-89146
libp2p-rendezvous through 0.17.1 Denial of Service via Unbounded Registration TTL in Discovery Responses
CVSS Score
7.5
EPSS Score
0.0%
EPSS Percentile
0th
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.
| CWE | CWE-190 CWE-617 |
| Vendor | libp2p |
| Product | libp2p-rendezvous |
| Published | Sep 11, 2026 |
| Last Updated | Sep 11, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High
Affected Versions
libp2p / libp2p-rendezvous
0 ≤ 0.17.1
References
gist.github.com: https://gist.github.com/thesmartshadow/25ef03f7ebbd12118a9d27695c885989 docs.rs: https://docs.rs/crate/libp2p-rendezvous/0.17.1/source/src/client.rs github.com: https://github.com/libp2p/rust-libp2p vulncheck.com: https://www.vulncheck.com/advisories/libp2p-rendezvous-through-0.17.1-denial-of-service-via-unbounded-registration-ttl-in-discovery-responses
Credits
🔍 Ali Firas