Allocation of Resources Without Limits or Throttling Affecting @sveltejs/kit package, versions >=2.49.0 <2.53.3
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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- published1 Mar 2026
- disclosed28 Feb 2026
- creditJoachim Viide
Introduced: 28 Feb 2026
CVE-2026-82259 (opens in a new tab)How to fix?
Upgrade @sveltejs/kit to version 2.53.3 or higher.
Overview
@sveltejs/kit is a SvelteKit framework and CLI
Affected versions of this package are vulnerable to Allocation of Resources Without Limits or Throttling via the deserialize_binary_form function in the remote form handler. An attacker can exhaust application resources by sending crafted binary form payloads with file entries that reuse or overlap the same offsets, causing the handler to inflate the files array and perform costly processing.
Notes: Only users with experimental.remoteFunctions: true who are using the form function and are processing the files array without validation are vulnerable.