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CVE-2026-82259 SvelteKit versions from 2.49.0 through 2.53.2 (fixed in 2.53.3) contain a deserialization expansion issue in the…

Description

SvelteKit versions from 2.49.0 through 2.53.2 (fixed in 2.53.3) contain a deserialization expansion issue in the experimental form remote function. When an application enables experimental.remoteFunctions and uses the form function to process the files array without validating files.length or individual file sizes, an attacker can submit relatively small inputs that expand into very large file arrays, leading to expensive processing and denial of service.

Produits et versions touchés

Produit Versions touchées Corrigé en
kit 2.53 premières → < 2.53.3 2.53.3
kit 2.49 2.49.0 → < 2.53.3 2.53.3

Références

Chronologie

  1. Publiée
  2. Dernière modification

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