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VULNERABILITIES

CVE-2026-82258 Details

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.

Metrics

CVSS 3.x Severity and Vector Strings:

NIST: [email protected]CVSS-B:4.8 MEDIUMVector:CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:H/I:N/A:N

References to Advisories, Solutions, and Tools

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URLSource(s)Tag(s)
https://github.com/sveltejs/kit/security/advisories/GHSA-hgv7-v322-mmgr [email protected]Vendor Advisory
https://www.vulncheck.com/advisories/sveltekit-2.38.0-before-2.60.1-cross-user-data-disclosure-via-query-batch [email protected]Third Party Advisory

Weakness Enumeration

CWE-IDCWE NameSource
CWE-362Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')[email protected]

Affected Products

ProductVersions
svelte sveltekit
>= 2.38.0, < 2.60.1

CPE

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

Remediation

  • No remediation found in references.

Change History

3 change records found show changes

QUICK INFO

CVE Dictionary Entry:
CVE-2026-82258
NVD Published Date:
Aug 28, 2026
NVD Last Modified:
Aug 31, 2026
Source:
[email protected]
CVE-2026-82258 Details - Not Deferred