Answer in brief
CVE-2026-82261 records a High severity (CVSS 8.7) vulnerability in SvelteKit before 2.52.2 CPU Exhaustion via Remote Form Deserialization. The current sources do not mark it as known exploited. The current feed maps sveltejs/kit (generic), @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 8.7. 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). 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 | >=2.49.0 <2.52.1 | 2.52.1 |
| @sveltejs/kitnpm | >=2.49.0 <2.52.2 | 2.52.2 |
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
Aug 28, 2026
SvelteKit (@sveltejs/kit) versions >=2.49.0 and <=2.52.1 with experimental remote functions and form enabled contain a CPU exhaustion vulnerability in form deserialization. An attacker can send malformed form data to cause the server to become unresponsive while processing the request, resulting in denial of service. Fixed in 2.52.2.
Quoted source text, attributed separately from HOL analysis.