CVE-2026-82258
SvelteKit 2.38.0 before 2.60.1 Cross-User Data Disclosure via query.batch
- State
- Published
- Severity
- 5.9 Medium
- Published
- Aug 28, 2026
- Updated
- Oct 8, 2026
- Reserved
- Aug 28, 2026
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 5.9 Medium | 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 | VulnCheck |
Weaknesses
- CWE-362 Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')
Affected Products
| Product | Versions |
|---|---|
kitsveltejs |
|
References
- GitHub Security Advisory (GHSA-hgv7-v322-mmgr)vendor-advisory
- VulnCheck Advisory: SvelteKit 2.38.0 before 2.60.1 Cross-User Data Disclosure via query.batchthird-party-advisory
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