Vulnerability record · CVE-2026-89146 · published 11 September 2026

CVE-2026-89146: Integer overflow vulnerability

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.

8.7 CVSS 4.0 High EPSS 0.63% · top 51.9% CWE-190 · Integer overflowCWE-617 · CWE-617 Deferred

8.7CVSS 4.0 base score

0.63%EPSS exploitation probability, 30 days

NoNot in CISA KEV

0Affected product versions listed by NVD

5References

23 Sep 2026Last modified by NVD

Description

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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:

References

Link	Tags
https://docs.rs/crate/libp2p-rendezvous/0.17.1/source/src/client.rs
https://gist.github.com/thesmartshadow/25ef03f7ebbd12118a9d27695c885989
https://github.com/libp2p/rust-libp2p
https://www.vulncheck.com/advisories/libp2p-rendezvous-through-0.17.1-denial-of-service-via-unbounded-registration-ttl-i
https://gist.github.com/thesmartshadow/25ef03f7ebbd12118a9d27695c885989

Track CVE-2026-89146 inside VULONE

Watch it alongside the ransomware crews, C2 infrastructure and forum chatter that reference it, query it through the API and pull it into your SIEM over TAXII.

Start free Open in platform

Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

8.4CVE-2025-48595Android Framework integer overflow enables local code executionAn integer overflow in multiple locations of the Android Framework can be turned into code execution. It allows a local attacker to escalate privileg…KEVEPSS 1.7%analysed1 Jun 2026 7.8CVE-2021-30952Apple WebKit integer overflow allows code execution via crafted web contentAn integer overflow in Apple's WebKit engine was fixed by improved input validation across tvOS 15.2, macOS Monterey 12.1, Safari 15.2, iOS/iPadOS 15…KEVEPSS 7.0%analysed24 Aug 2021 7.8CVE-2026-21385Qualcomm chipset firmware memory corruption via alignment integer overflowA memory corruption flaw in Qualcomm chipset firmware arises from an integer overflow when alignments are used for memory allocation (CWE-190). It af…KEVEPSS 1.2%analysed2 Mar 2026 7.8CVE-2018-14634Linux kernel create_elf_tables() integer overflow privilege escalationAn integer overflow in the Linux kernel's create_elf_tables() function lets an unprivileged local user escalate privileges when a SUID or otherwise p…KEVEPSS 15%analysed25 Sep 2018 7.8CVE-2025-24985Windows Fast FAT Driver integer overflow enables local code executionThe Windows Fast FAT driver contains an integer overflow that leads to a heap-based buffer overflow. A crafted FAT filesystem operation can corrupt h…KEVEPSS 3.8%analysed11 Mar 2025 8.4CVE-2022-0185Linux Kernel Filesystem Context Heap Buffer OverflowThe legacy_parse_param function in the Linux kernel's Filesystem Context functionality fails to properly verify supplied parameter lengths, causing a…KEVEPSS 25%analysed11 Feb 2022 7.8CVE-2024-38080Windows Hyper-V elevation of privilege via integer overflowCVE-2024-38080 is an elevation of privilege flaw in Microsoft Windows Hyper-V, tied to an integer overflow (CWE-190) per the CWE mapping, though NVD …KEVEPSS 7.1%analysed9 Jul 2024 7.8CVE-2023-33107Qualcomm Graphics Linux integer overflow memory corruptionCVE-2023-33107 is an integer overflow (CWE-190) in Qualcomm Graphics Linux that causes memory corruption when a shared virtual memory region is assig…KEVEPSS 0.89%analysed5 Dec 2023

Source: NIST National Vulnerability Database (record CVE-2026-89146), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.