CVE-2026-82258

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 v3 4.8 MEDIUM

4.8^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 1.2 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity HIGH

Privileges Required LOW

User Interaction REQUIRED

Confidentiality Impact HIGH

Integrity Impact NONE

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://github.com/sveltejs/kit/security/advisories/GHSA-hgv7-v322-mmgr	Vendor Advisory
https://www.vulncheck.com/advisories/sveltekit-2.38.0-before-2.60.1-cross-user-data-disclosure-via-query-batch	Third Party Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:svelte:sveltekit:*:*:*:*:*:node.js:*:*

History

No history.

Information

Published : 2026-08-28 12:16

Updated : 2026-08-31 19:17

NVD link : CVE-2026-82258

Mitre link : CVE-2026-82258

CVE.ORG link : CVE-2026-82258

JSON object : View

Products Affected

svelte

sveltekit

CWE

CWE-362

Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')

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