{"action":"Upgrade @sveltejs/kit to 2.70.2 or later.","affected":[{"fixed":"2.70.2","introduced":"0"}],"component":"@sveltejs/kit","cve_ids":["CVE-2026-66062"],"ecosystem":"npm","epss":0.00507,"exploited":false,"fixed_versions":["2.70.2"],"ghsa_id":"GHSA-29g2-3rmr-qm68","id":"tcs_01M5KESKV2SYDF57FBKFYY7ES7","modified_at":"2026-08-07T17:10:58.809703Z","published_at":"2026-08-07T16:50:02Z","references":["https://osv.dev/vulnerability/GHSA-29g2-3rmr-qm68","https://github.com/sveltejs/kit/security/advisories/GHSA-29g2-3rmr-qm68","https://github.com/sveltejs/kit/commit/82712fc02c24b1dcf5b25d7a52129cd8455f04f5","https://github.com/sveltejs/kit","https://github.com/sveltejs/kit/releases/tag/@sveltejs/kit@2.70.2"],"severity":{"label":"medium","score":5.3},"sources":[{"source":"osv","source_id":"GHSA-29g2-3rmr-qm68","url":"https://osv.dev/vulnerability/GHSA-29g2-3rmr-qm68"}],"summary":"SvelteKit: ReDoS (O(n^2)) in content negotiation — unauthenticated DoS via the Accept header"}