chore(deps): update dependency svelte to v5.46.4 [security]#6981
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chenjiahan merged 1 commit intomainfrom Jan 16, 2026
Merged
chore(deps): update dependency svelte to v5.46.4 [security]#6981chenjiahan merged 1 commit intomainfrom
chenjiahan merged 1 commit intomainfrom
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chenjiahan
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Jan 16, 2026
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This PR contains the following updates:
5.46.1→5.46.4GitHub Vulnerability Alerts
CVE-2025-15265
Summary
An XSS vulnerability exists in Svelte 5.46.0-2 resulting from improper escaping of
hydratablekeys. If these keys incorporate untrusted user input, arbitrary JavaScript can be injected into server-rendered HTML.Details
When using the
hydratablefunction, the first argument is used as a key to uniquely identify the data, such that the value is not regenerated in the browser.This key is embedded into a
<script>block in the server-rendered<head>without escaping unsafe characters. A malicious key can break out of the script context and inject arbitrary JavaScript into the HTML response.Impact
This is a cross-site scripting vulnerability affecting applications that have the
experimental.asyncflag enabled and usehydratablewith keys incorporating untrusted user input.Affected applications should upgrade to a patched version immediately.
Release Notes
sveltejs/svelte (svelte)
v5.46.4Compare Source
Patch Changes
devalue.unevalto serializehydratablekeys (ef81048e238844b729942441541d6dcfe6c8ccca)v5.46.3Compare Source
Patch Changes
Configuration
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