{"action":"Upgrade undici to 8.5.0 or later.","affected":[{"fixed":"8.5.0","introduced":"8.0.0"}],"component":"undici","cve_ids":["CVE-2026-9675"],"ecosystem":"npm","epss":0.00488,"exploited":false,"fixed_versions":["8.5.0"],"ghsa_id":"GHSA-38rv-x7px-6hhq","id":"tcs_01M5KEWPSDW16HNVMHAC8Y9MCX","modified_at":"2026-06-18T14:41:29.213511Z","published_at":"2026-06-18T14:28:10Z","references":["https://osv.dev/vulnerability/GHSA-38rv-x7px-6hhq","https://github.com/nodejs/undici/security/advisories/GHSA-38rv-x7px-6hhq","https://nvd.nist.gov/vuln/detail/CVE-2026-9675","https://cna.openjsf.org/security-advisories.html","https://github.com/nodejs/undici"],"severity":{"label":"high","score":7.5},"sources":[{"source":"osv","source_id":"GHSA-38rv-x7px-6hhq","url":"https://osv.dev/vulnerability/GHSA-38rv-x7px-6hhq"}],"summary":"undici WebSocket client vulnerable to denial of service via cumulative fragment bypass"}