CVE-2026-82258
5.9
CVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:P/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N
Summary
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
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| sveltejs | kit | 2.38.0 < 2.60.1 | affected |
| sveltejs | kit | 2.60.1 | unaffected |
Weaknesses
- CWE-362: Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')
References
- https://github.com/sveltejs/kit/security/advisories/GHSA-hgv7-v322-mmgr
- https://www.vulncheck.com/advisories/sveltekit-2.38.0-before-2.60.1-cross-user-data-disclosure-via-query-batch
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