SEPTEMBER 14, 2026
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Case File

CVE-2026-89146

HIGH · CVSS 7.5 EPSS 0.43% Public Exploit

Source: NVD + CISA KEV + EPSS · Published 2026-09-11 · Last synced 2026-09-14

CyberRota Analysis

AI-Generated

The vulnerability affects libp2p-rendezvous versions up to 0.17.1, where improper validation of registration TTL values in discovery responses can lead to a timer arithmetic overflow. This flaw allows a malicious rendezvous server to send a discovery response with an unbounded TTL, potentially causing client nodes to crash due to a panic in the expiry timer computation. Organizations utilizing affected versions should prioritize patching this vulnerability to prevent service disruptions and potential exploitation.

Public Exploit Signal

A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.

Note: these links are listed for security research and verification purposes only.

CVE
CVE-2026-89146
Severity
HIGH
CVSS
7.5
EPSS
0.43%

Original NVD 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.