CVE-2026-89146 libp2p-rendezvous - Denial of Service

libp2p-rendezvous <= 0.17.1 contains a denial of service caused by failure to validate registration TTL values in discovery responses, letting malicious rendezvous servers trigger timer arithmetic overflow and crash client nodes, exploit requires interaction with a malicious server.

CVSS base score 7.5 /10
High
CISA KEV
Not listed
Public exploit
None known
EPSS
0.63% chance of exploitation in 30 days
View the NVD record ↗

Details

Type
Denial of Service
Impact
Denial Of Service
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Published
11 September 2026
Updated
15 October 2026
Weakness
CWE-190

Vendor fix

Update to a version later than 0.17.1 or the latest available version.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

References

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