CVE-2026-82258SvelteKit 2.38.0 before 2.60.1 Cross-User Data Disclosure via query.batch
Updated under an hour ago ()
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It affects sveltejs kit and 1 other product. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
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Free account, 1 product
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
- 5.9 MEDIUM (v4.0, CNA)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
- Weakness (CWE)
- CWE-362
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- VulnCheck
- NVD analysis
- Analyzed
- Record last updated
- Oct 8, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
sveltejs kit sveltejs:kit (from the name) | from 2.38.0 before 2.60.1; 2.60.1 not affected | CNA record |
svelte sveltekit svelte:sveltekit | from 2.38.0 before 2.60.1 | NVD |
References
- https://github.com/sveltejs/kit/security/advisories/GHSA-hgv7-v322-mmgrvendor-advisory
- https://www.vulncheck.com/advisories/sveltekit-2.38.0-before-2.60.1-cross-user-data-disclosure-via-query-batchthird-party-advisory
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.