CVEvulnerability

CVE-2026-66062

5.3 MEDIUM Published 2026-08-07 Modified 2026-10-24 Official page ↗
Status
Deferred
Published
2026-08-07
Last modified
2026-10-24
Assigner
[email protected]
CVSS 3.1 ([email protected])
5.3 MEDIUM — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Weaknesses
CWE-1333

Description

SvelteKit is a framework for rapidly developing robust, performant web applications using Svelte. Prior to 2.70.2, the content negotiation header parser used by SvelteKit's request handling (for headers such as Accept) uses a regular expression vulnerable to quadratic backtracking, so a maliciously crafted header value can cause excessive CPU consumption and degrade or deny service. Version 2.70.2 fixes the issue.

Related

Weakness · CWE (1)

  • CWE-1333 Inefficient Regular Expression Complexity weakness

References