{"action":"Upgrade @fastify/middie to 9.3.2 or later.","affected":[{"fixed":"9.3.2","introduced":"0"}],"component":"@fastify/middie","cve_ids":["CVE-2026-33804"],"ecosystem":"npm","epss":0.00278,"exploited":false,"fixed_versions":["9.3.2"],"ghsa_id":"GHSA-v9ww-2j6r-98q6","id":"tcs_01M5KGBEY24M6FCJA266AQ4Y6A","modified_at":"2026-04-16T22:56:28.833804Z","published_at":"2026-04-16T22:28:54Z","references":["https://osv.dev/vulnerability/GHSA-v9ww-2j6r-98q6","https://github.com/fastify/middie/security/advisories/GHSA-v9ww-2j6r-98q6","https://nvd.nist.gov/vuln/detail/CVE-2026-33804","https://cna.openjsf.org/security-advisories.html","https://github.com/fastify/middie"],"severity":{"label":"high","score":7.4},"sources":[{"source":"osv","source_id":"GHSA-v9ww-2j6r-98q6","url":"https://osv.dev/vulnerability/GHSA-v9ww-2j6r-98q6"}],"summary":"@fastify/middie vulnerable to middleware bypass via deprecated ignoreDuplicateSlashes option"}