SvelteKit is a framework for rapidly developing robust, performant web applications using Svelte. Prior to versions 2.70.4 and 3.1.1, the reroute hook could rewrite an invalid percent-encoded pathname into a valid route and reach a comparison that decoded the original malformed pathname outside the guarded decoding operation. The resulting unhandled URIError could crash an adapter-node server and deny service to other requests. This issue is fixed in 2.70.4 and 3.1.1.
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History
Fri, 13 Nov 2026 19:45:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | SvelteKit is a framework for rapidly developing robust, performant web applications using Svelte. Prior to versions 2.70.4 and 3.1.1, the reroute hook could rewrite an invalid percent-encoded pathname into a valid route and reach a comparison that decoded the original malformed pathname outside the guarded decoding operation. The resulting unhandled URIError could crash an adapter-node server and deny service to other requests. This issue is fixed in 2.70.4 and 3.1.1. | |
| Title | SvelteKit: Unhandled URIError when `reroute` rewrites a malformed pathname crashes adapter-node | |
| Weaknesses | CWE-248 | |
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cvssV3_1
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MITRE
Status: PUBLISHED
Assigner: GitHub_M
Published:
Updated: 2026-11-13T19:29:04.744Z
Reserved: 2026-11-12T22:42:47.031Z
Link: CVE-2026-128117
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