CVE-2026-82258

Medium

Description

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.

SeverityMedium

CVSS4.8

Exploit probability—

Product

Sveltekit

PublishedAug 28, 2026

First seenAug 28, 2026

Weakness typeCWE-362Race condition

How to fix

Update

svelte sveltekit2.60.1 or later
@sveltejs/kit2.60.1 or later

Vendor advisories

github.com/sveltejs/kit/security/advisories/GHSA-hgv7-v322-mmgr

Affected products

Product	Affected versions	Fixed in
svelte sveltekit	2.38.0 ≤ v < 2.60.1	2.60.1
@sveltejs/kitnpm	2.38.0 ≤ v < 2.60.1	2.60.1

Check your version

Choose the product and enter the version you run to see whether it falls in the affected range.

In the Intelligence 360 plan

Attack Surface Management

See the assets tied to your domains, the technologies they run and known vulnerabilities in one list.