{"action":"Upgrade @clerk/fastify to 2.6.31 or later.","affected":[{"fixed":"2.6.31","introduced":"1.0.42"},{"fixed":"3.1.16","introduced":"3.0.0"}],"component":"@clerk/fastify","cve_ids":["CVE-2026-42349"],"ecosystem":"npm","epss":0.00246,"exploited":false,"fixed_versions":["2.6.31","3.1.16"],"ghsa_id":"GHSA-w24r-5266-9c3c","id":"tcs_01M5KGDG0E6RCD7Z291R7Z8F64","modified_at":"2026-09-10T03:51:03.672253114Z","published_at":"2026-04-30T18:20:02Z","references":["https://osv.dev/vulnerability/GHSA-w24r-5266-9c3c","https://github.com/clerk/javascript/security/advisories/GHSA-w24r-5266-9c3c","https://nvd.nist.gov/vuln/detail/CVE-2026-42349","https://github.com/clerk/javascript"],"severity":{"label":"high","score":8.1},"sources":[{"source":"osv","source_id":"GHSA-w24r-5266-9c3c#npm/@clerk/fastify","url":"https://osv.dev/vulnerability/GHSA-w24r-5266-9c3c"}],"summary":"Clerk has an authorization bypass when combining organization, billing, or reverification checks"}