{"answers":{"affected":"","exploited":"It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-89146 exists.","fix":"No fix has been published for CVE-2026-89146 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-89146 is a high-severity vulnerability in libp2p-rendezvous, published on 11 Sep 2026. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2026-89146 and fix it if it is affected.\n\nWhat it is: CVE-2026-89146 is a high-severity vulnerability in libp2p-rendezvous, published on 11 Sep 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.\nExploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-89146 exists.\n\nAffected product: libp2p-rendezvous. No package-level version data is available, so check the vendor advisory linked from the reference page.\n\nTask:\n1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.\n2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.\n3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.\n4. Run the tests and summarise what changed and why.\n5. If nothing in the project is affected, say so and change nothing.\n\nReference: https://insights.sbomify.com/CVE-2026-89146/ (Markdown: https://insights.sbomify.com/CVE-2026-89146/index.md)","id":"CVE-2026-89146","markdown":"https://insights.sbomify.com/CVE-2026-89146/index.md","name":"CVE-2026-89146","record":{"aliases":["GHSA-gh9c-4324-26cm"],"analysis":{"component_type":"library","fix_type":"upgrade","impacts":["denial_of_service"],"network_reachable":"yes","non_default_config":false,"product_category":"libp2p rendezvous library","requires_auth":"none","summary":"A malicious rendezvous server can cause a client node to panic via unbounded TTL values in discovery responses, leading to denial of service.","user_interaction":"not_required","vuln_class":"integer_overflow"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"VulnCheck","cpe":[],"cvss":{"score":8.7,"severity":"high","source":"cna","vector":"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","version":"4.0"},"cwes":[{"id":"CWE-617","name":"Reachable Assertion"},{"id":"CWE-190","name":"Integer Overflow or Wraparound"}],"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.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"weaponised"},"has_fix":null,"headline":"libp2p-rendezvous through 0.17.1 Denial of Service via Unbounded Registration TTL in Discovery Responses","id":"CVE-2026-89146","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"integer_overflow","year":"2026"},"n_packages":0,"n_references":4,"next":{"headline":"Net-SNMP through 5.9.5.2 Denial of Service via Blocking Unauthenticated SMUX Read","id":"CVE-2026-89147"},"packages":[],"prev":{"headline":"Flextype CMS 0.9.9 through 1.0.0-alpha.3 Stored XSS via Plugin Directory","id":"CVE-2026-89145"},"products":["libp2p-rendezvous"],"published":"2026-09-11","related":[],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":"yes","exploitation":"poc","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-09-24","vendors":["libp2p"]},"summary":"A malicious rendezvous server can cause a client node to panic via unbounded TTL values in discovery responses, leading to denial of service.","url":"https://insights.sbomify.com/CVE-2026-89146/"}