CVE-2026-89146
libp2p-rendezvous through 0.17.1 Denial of Service via Unbounded Registration TTL in Discovery Responses
- State
- Published
- Severity
- 8.7 High
- Published
- Sep 11, 2026
- Updated
- Sep 24, 2026
- Reserved
- Sep 11, 2026
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 8.7 High | CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N | VulnCheck |
| 3.1 | 7.5 High | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H | VulnCheck |
Weaknesses
Affected Products
| Product | Versions |
|---|---|
libp2p-rendezvouslibp2p |
|
References
- libp2p-rendezvous registration lifetime denial of servicethird-party-advisory
- src/client.rs at libp2p-rendezvous 0.17.1technical-description
- Productproduct
- VulnCheck Advisory: libp2p-rendezvous through 0.17.1 Denial of Service via Unbounded Registration TTL in Discovery Responsesthird-party-advisory
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