要点
- CVE-2026-40074 是影响 kit (svelte), @sveltejs/kit 的高危 (CVSS 7.5)漏洞。
- 未来 30 天内被利用的概率（EPSS）：0.37%，高于 30.4% 的漏洞。
- 修复：升级到 2.57.1 或更高版本。
| Package | Affected versions | Patched versions |
|---|
| kit | < 2.57.1
| 2.57.1
|
| @sveltejs/kit npm | < 2.57.1
| 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.
NVD description
SvelteKit is a framework for rapidly developing robust, performant web applications using Svelte. Prior to 2.57.1, 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. This vulnerability is fixed in 2.57.1.
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