Technology · Svelte
SvelteKit vulnerabilities
Updated . Rebuilt every hour.
Junglewise Threat Intelligence has tracked 20 vulnerabilities in SvelteKit: 0 in the last 7 days and 11 in the last 90 days, 0 of them critical and 0 exploited in the wild. The most recent, SvelteKit XSS via cache-control header in prerendered pages, was published on 21 October 2026. 5 vulnerabilities in the last four weeks, up from none in the four before.
- Last 7 days
- 0
- Last 90 days
- 11
- Critical, all time
- 0
- Exploited in the wild
- 0
About SvelteKit
Web application framework built on Svelte for building full-stack web applications.
Latest SvelteKit vulnerabilities
- SvelteKit XSS via cache-control header in prerendered pagesmediumCVSS 4.7
- SvelteKit open redirect in enhanced form actionsmediumCVSS 4.7
- CVE-2026-114063: SvelteKit path traversal in vite preview server on WindowshighCVSS 7.5
- CVE-2026-114062: SvelteKit server-side request forgery in self-fetch fallbacksmediumCVSS 5.3
- CVE-2026-114061: SvelteKit cross-site scripting in prerendered pagesmediumCVSS 4.7EPSS 0.2%
- CVE-2026-82261: SvelteKit CPU exhaustion in remote form deserializationhighCVSS 7.5EPSS 0.5%
- CVE-2026-82260: SvelteKit memory exhaustion in remote form deserializationhighCVSS 7.5EPSS 0.5%
- CVE-2026-82259: SvelteKit deserialization expansion in form remote functionhighCVSS 7.5EPSS 0.5%
- CVE-2026-82258: SvelteJS Kit query.batch cross-talk vulnerabilitymediumCVSS 4.8EPSS 0.2%
- CVE-2026-82257: SvelteKit prototype pollution in file input deletionmediumCVSS 4.3EPSS 0.4%
- CVE-2026-82256: SvelteKit unhandled promise rejection in form payload handlingmediumCVSS 5.3EPSS 0.4%
- CVE-2026-66062: Svelte SvelteKit ReDoS in Accept header content negotiationmediumCVSS 5.3EPSS 0.5%
- CVE-2026-40074: Svelte SvelteKit denial of service in redirect functionhighCVSS 7.5EPSS 0.6%
- CVE-2026-40073: Svelte SvelteKit body size limit bypass in adapter-nodehighCVSS 7.5EPSS 1.0%
- CVE-2026-22803: SvelteKit memory amplification DoS in form deserializermediumCVSS 4EPSS 0.6%
- CVE-2025-67647: SvelteKit denial of service and SSRF in prerenderingmediumCVSS 4EPSS 0.5%
- CVE-2025-32388: @sveltejs/kit vulnerable to Cross-site Scripting via tracked search_paramsmediumCVSS 5.4EPSS 0.3%
- CVE-2024-23641: Sending a GET or HEAD request with a body crashes SvelteKithighCVSS 7.5EPSS 0.8%
- CVE-2023-29008: SvelteKit framework has Insufficient CSRF protection for CORS requestshighCVSS 8.8EPSS 0.4%
- CVE-2023-29003: SvelteKit vulnerable to Cross-Site Request ForgeryhighCVSS 8.8EPSS 0.6%
Most severe SvelteKit vulnerabilities
Exploited in the wild first, then by severity and CVSS score.
- CVE-2023-29003: SvelteKit vulnerable to Cross-Site Request ForgeryhighCVSS 8.8EPSS 0.6%
- CVE-2023-29008: SvelteKit framework has Insufficient CSRF protection for CORS requestshighCVSS 8.8EPSS 0.4%
- CVE-2026-40073: Svelte SvelteKit body size limit bypass in adapter-nodehighCVSS 7.5EPSS 1.0%
- CVE-2024-23641: Sending a GET or HEAD request with a body crashes SvelteKithighCVSS 7.5EPSS 0.8%
- CVE-2026-40074: Svelte SvelteKit denial of service in redirect functionhighCVSS 7.5EPSS 0.6%
- CVE-2026-82259: SvelteKit deserialization expansion in form remote functionhighCVSS 7.5EPSS 0.5%
- CVE-2026-82261: SvelteKit CPU exhaustion in remote form deserializationhighCVSS 7.5EPSS 0.5%
- CVE-2026-82260: SvelteKit memory exhaustion in remote form deserializationhighCVSS 7.5EPSS 0.5%
- CVE-2026-114063: SvelteKit path traversal in vite preview server on WindowshighCVSS 7.5
- CVE-2025-32388: @sveltejs/kit vulnerable to Cross-site Scripting via tracked search_paramsmediumCVSS 5.4EPSS 0.3%
Vulnerabilities per week
5 vulnerabilities in the last four weeks, up from none in the four before. The last 13 weeks, by the week each vulnerability was published.
| Week of | Bar | Vulns | Critical |
|---|---|---|---|
| 17 Aug 2026 | 0 | 0 | |
| 24 Aug 2026 | 6 | 0 | |
| 31 Aug 2026 | 0 | 0 | |
| 7 Sep 2026 | 0 | 0 | |
| 14 Sep 2026 | 0 | 0 | |
| 21 Sep 2026 | 0 | 0 | |
| 28 Sep 2026 | 0 | 0 | |
| 5 Oct 2026 | 0 | 0 | |
| 12 Oct 2026 | 0 | 0 | |
| 19 Oct 2026 | 5 | 0 | |
| 26 Oct 2026 | 0 | 0 | |
| 2 Nov 2026 | 0 | 0 | |
| 9 Nov 2026 | 0 | 0 |
Embed a badge
A live badge for a README, a status page or an internal wiki: how many SvelteKit vulnerabilities were published in the last 7 days and how many of them are critical, refreshed hourly.
[](https://junglewise.ai/threats/technologies/sveltekit)<a href="https://junglewise.ai/threats/technologies/sveltekit"><img src="https://junglewise.ai/threats/technologies/sveltekit/badge.svg" alt="SvelteKit vulnerabilities" /></a>How this is built
Junglewise Threat Intelligence collects vulnerabilities from NVD, GitHub Security Advisories, OSV, the CISA Known Exploited Vulnerabilities catalog, FIRST EPSS and vendor advisories, and matches each one to the technologies and vendors it affects. Dates are the date a vulnerability was published, in UTC.
The pages are rebuilt from the database every hour. Frozen weekly and monthly reports never change once published, so they can be cited.
Use this data
The same data is at https://junglewise.ai/threats/technologies/sveltekit.json, and this page as text at https://junglewise.ai/threats/technologies/sveltekit.md, for scripts and language models. It is free to reuse under CC BY 4.0 with a link back to this page.
Cite as: Junglewise Threat Intelligence, "SvelteKit vulnerabilities", https://junglewise.ai/threats/technologies/sveltekit, 9 November 2026.