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CVE-2026-82258

CVE-2026-82258 · SvelteKit 2.38.0 before 2.60.1 Cross-User Data Disclosure via query.batch

This page contains facts from public vulnerability sources. Check the original advisory before updating.

SvelteKit versions from 2.38.0 before 2.60.1 contain a race condition in query.batch that allows concurrent requests from different users to merge under a single request context. Attackers can exploit specific timing conditions to access sensitive data from other users' concurrent requests.

CVSS 5.9 · Medium · EPSS 0.2% · Fix available

Published
Updated

Stack: node

Affected products and versions

  • kit

    Versions
    • ≥ 2.38.0, < 2.60.1: Affected (semver)
    • 2.60.1: Not affected (semver)

    Update to 2.60.1

  • @sveltejs/kit npm

    Affected ranges
    • SEMVER: ≥ 2.38.0, < 2.60.1

    Update to 2.60.1

Original sources

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