{"id":"CVE-2026-22803","aliases":["GHSA-j2f3-wq62-6q46"],"url":"https://o3.security/vulnerability/CVE-2026-22803","summary":"SvelteKit has a memory amplification DoS in Remote Functions binary form deserializer","details":"SvelteKit is a framework for rapidly developing robust, performant web applications using Svelte. From 2.49.0 to 2.49.4, the experimental form remote function uses a binary data format containing a representation of submitted form data. A specially-crafted payload can cause the server to allocate a large amount of memory, causing DoS via memory exhaustion. This vulnerability is fixed in 2.49.5.","published":"2026-01-15T18:37:57.831Z","modified":"2026-08-12T03:51:42.215667711Z","cvss":null,"epss":{"score":0.00599,"percentile":0.47148,"asOf":"2026-09-17"},"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"npm","name":"@sveltejs/kit","fixedVersion":"2.49.5"}],"fix":{"url":"https://github.com/sveltejs/kit/commit/8ed8155215b9a74012fecffb942ad9a793b274e5","label":"sveltejs/kit@8ed8155"},"references":[{"type":"WEB","url":"https://github.com/sveltejs/kit/releases/tag/@sveltejs%2Fadapter-node@5.5.1"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/22xxx/CVE-2026-22803.json"},{"type":"ADVISORY","url":"https://github.com/sveltejs/kit/security/advisories/GHSA-j2f3-wq62-6q46"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-22803"},{"type":"FIX","url":"https://github.com/sveltejs/kit/commit/8ed8155215b9a74012fecffb942ad9a793b274e5"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-12T03:51:42.215667711Z"}}