CVE-2026-89146CWE-190CWE-617

CVE-2026-89146

High · published September 11, 2026

CVSS v3.1
7.5
EPSS
1%
Percentile
49.5
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
7.5 · HIGH
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CVSS v4.0
8.7 · 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
EPSS
0.00630 · 49.5th percentile
Weaknesses
CWE-190 · Integer Overflow or Wraparound; CWE-617 · Reachable Assertion
Published
2026-09-11T15:16Z
References (5)
https://docs.rs/crate/libp2p-rendezvous/0.17.1/source/src/client.rs · [email protected]https://gist.github.com/thesmartshadow/25ef03f7ebbd12118a9d27695c885989 · [email protected]https://github.com/libp2p/rust-libp2p · [email protected]https://www.vulncheck.com/advisories/libp2p-rendezvous-through-0.17.1-denial-of-service-via-unbounded-registration-ttl-in-discovery-responses · [email protected]https://gist.github.com/thesmartshadow/25ef03f7ebbd12118a9d27695c885989 · 134c704f-9b21-4f2e-91b3-4a467353bcc0
EPSS history
Timeline
  • 13 SEP 03:23Z
    EPSS moved — → 0%
    epss
  • 11 SEP 10:46Z
    libp2p-rendezvous through 0.17.1 Denial of Service via Unbounded Registration TTL in Discovery Responses
    cvelistv5