{"action":"Upgrade fast-uri to 2.4.7 or later.","affected":[{"fixed":"2.4.7","introduced":"0"},{"fixed":"3.1.8","introduced":"3.0.0"},{"fixed":"4.1.5","introduced":"4.0.0"}],"component":"fast-uri","cve_ids":["CVE-2026-86472"],"ecosystem":"npm","epss":0.00253,"exploited":false,"fixed_versions":["2.4.7","3.1.8","4.1.5"],"ghsa_id":"GHSA-hrr3-gc8f-f4qj","id":"tcs_01M5KFW0RQ62ZQP3TRBM5DM9TJ","modified_at":"2026-09-30T00:00:04.426165475Z","published_at":"2026-09-29T23:54:25Z","references":["https://osv.dev/vulnerability/GHSA-hrr3-gc8f-f4qj","https://github.com/fastify/fast-uri/security/advisories/GHSA-hrr3-gc8f-f4qj","https://nvd.nist.gov/vuln/detail/CVE-2026-86472","https://github.com/fastify/fast-uri/commit/5dabb86732aa2a7655e258719970e61e12b6b4d1","https://cna.openjsf.org/security-advisories.html","https://github.com/fastify/fast-uri","https://github.com/fastify/fast-uri/releases/tag/v2.4.7","https://github.com/fastify/fast-uri/releases/tag/v3.1.8","https://github.com/fastify/fast-uri/releases/tag/v4.1.5"],"severity":{"label":"medium","score":4.8},"sources":[{"source":"osv","source_id":"GHSA-hrr3-gc8f-f4qj","url":"https://osv.dev/vulnerability/GHSA-hrr3-gc8f-f4qj"}],"summary":"fast-uri vulnerable to inconsistent host case normalization via percent-encoded octets"}