GitHub Advisoryadvisory · npm
GHSA-3f6h-2hrp-w5wx @sveltejs/kit: Unvalidated redirect in handle hook causes Denial-of-Service
MEDIUM
Official page ↗
- Aliases
- CVE-2026-40074
- Ecosystem
- npm
- Packages
- @sveltejs/kit
- Severity
- Moderate
- CVSS vector
- CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:L
- Weaknesses
- CWE-755
- Reviewed
- 2026-04-10
Affected packages
• npm @sveltejs/kit: < 2.57.1 → fixed in 2.57.1
Description
`redirect`, when called from inside the `handle` server hook with a location parameter containing characters that are invalid in a HTTP header, will cause an unhandled `TypeError`. This could result in DoS on some platforms, especially if the location passed to `redirect` contains unsanitized user input.
Related
Alias · CVE (1)
- CVE-2026-40074 SvelteKit is a framework for rapidly developing robust, performant web applications using Svelte. vulnerability
Weakness · CWE (1)
- CWE-755 Improper Handling of Exceptional Conditions weakness
References
- https://github.com/sveltejs/kit/security/advisories/GHSA-3f6h-2hrp-w5wx web
- https://nvd.nist.gov/vuln/detail/CVE-2026-40074 advisory
- https://github.com/sveltejs/kit/commit/10d7b44425c3d9da642eecce373d0c6ef83b4fcd web
- https://github.com/sveltejs/kit package
- https://github.com/sveltejs/kit/releases/tag/%40sveltejs%2Fkit%402.57.1 web
- https://github.com/sveltejs/kit/releases/tag/@sveltejs/[email protected] web