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

Published Aug 28, 2026
·
Updated

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.

Affected Software

1 affected component
SvelteKit>=2.38.0<2.60.1

Remediation

Recommended actions to resolve this vulnerability, in priority order.

  1. Upgrade

    Upgrade SvelteKit to a version that resolves this vulnerability.

    Fixed in 2.60.1

Event History

Aug 28, 2026
CVE Published
via MITRE·10:49 AM
Data Sourced
via MITRE·10:49 AM
DescriptionWeakness

Contact

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