CVE-2026-82258
mediumpriority · track · 19EPSS 0.002 · 14 %ileUSEPSS · scored 2026-10-27
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
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · low–medium · 2.1–5.9
ssvc
A stakeholder decision — act, attend, or track — from exploitation and impact.
weaknesses
The CWE weakness classes this flaw belongs to.
affected products (2)
Products and version ranges known to be affected.
advisories (1)
Vendor and ecosystem advisories describing this.
- GHSA-hgv7-v322-mmgr@sveltejs/kit: `query.batch` cross-talk2026-05-21ghsa · osvUS
`query.batch()` could, under very rare and specific timings, cause concurrent requests from different users to merge and resolve under single request context, enabling cross-user data disclosure.
sources
Which sources assert this record, and when.
references (2) nvd
External citations — patches, advisories, analysis.
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