Answer in brief
CVE-2026-82258 records a Medium severity (CVSS 5.9) vulnerability in SvelteKit 2.38.0 before 2.60.1 Cross-User Data Disclosure via query.batch. The current sources do not mark it as known exploited. The current feed maps sveltejs/kit (generic), @sveltejs/kit (npm), @sveltejs/kit (npm). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 5.9. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps sveltejs/kit (generic), @sveltejs/kit (npm), @sveltejs/kit (npm). Check affected ranges and fixed versions before updating.
| Product | Affected versions | Fixed versions |
|---|---|---|
| cpe:2.3:a:svelte:sveltekit:*:*:*:*:*:node.js:*:* | Not reported | Not reported |
| Package | Affected range | Fixed version |
|---|---|---|
| sveltejs/kitgeneric | >=2.38.0 <2.60.1 | 2.60.1 |
| @sveltejs/kitnpm | >=2.38.0,<=2.60.0 | 2.60.1 |
| @sveltejs/kitnpm | >=2.38.0 <2.60.1 | 2.60.1 |
Published upstream
Aug 28, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Oct 8, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Jul 1, 2026
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.
Quoted source text, attributed separately from HOL analysis.