Technology · Svelte
SvelteKit vulnerabilities
Updated . Rebuilt every hour.
Junglewise Threat Intelligence has tracked 17 vulnerabilities in SvelteKit: 0 in the last 7 days and 9 in the last 90 days, 0 of them critical and 0 exploited in the wild. The most recent, CVE-2026-82261, was published on 28 August 2026.
- Last 7 days
- 0
- Last 90 days
- 9
- Critical, all time
- 0
- Exploited in the wild
- 0
Latest SvelteKit vulnerabilities
- CVE-2026-82261: SvelteKit (@sveltejs/kit) versions >=2.49.0 and <=2.52.1 with experimental remote functions and form enabled contain a CPU…highCVSS 7.5EPSS 0.5%
- CVE-2026-82260: SvelteKit (@sveltejs/kit) versions >=2.49.0 and <=2.52.1 with experimental remote functions (experimental.remoteFunctions)…highCVSS 7.5EPSS 0.5%
- CVE-2026-82259: SvelteKit versions from 2.49.0 through 2.53.2 (fixed in 2.53.3) contain a deserialization expansion issue in the…highCVSS 7.5EPSS 0.5%
- CVE-2026-82258: SvelteKit versions from 2.38.0 before 2.60.1 contain a race condition in query.batch that allows concurrent requests from…mediumCVSS 4.8EPSS 0.2%
- CVE-2026-82257: SvelteKit versions before 2.69.1 contain a prototype pollution vulnerability in remote form functions with file input…mediumCVSS 4.3EPSS 0.4%
- CVE-2026-82256: SvelteKit before 2.69.1 fails to properly validate remote form function payload sizes, allowing attackers to crash the…mediumCVSS 5.3EPSS 0.4%
- CVE-2026-66062: Svelte SvelteKit ReDoS in Accept header content negotiationmediumCVSS 5.3EPSS 0.5%
- SvelteKit prototype pollution in remote-function formsmediumCVSS 4.3
- Svelte SvelteKit Denial of Service via large form payloadsmediumCVSS 5.3
- 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: SvelteKit cross-site scripting via tracked search parameterslowCVSS 3.1EPSS 0.3%
- CVE-2024-23641: SvelteKit denial of service via GET/HEAD requests with bodylowCVSS 3.1EPSS 0.8%
- CVE-2023-29008: SvelteKit insufficient CSRF protection in CORS requestslowCVSS 3.1EPSS 0.4%
- CVE-2023-29003: SvelteKit insufficient cross-site request forgery protectionlowCVSS 3.1EPSS 0.6%
Most severe SvelteKit vulnerabilities
Exploited in the wild first, then by severity and CVSS score.
- CVE-2026-40073: Svelte SvelteKit body size limit bypass in adapter-nodehighCVSS 7.5EPSS 1.0%
- CVE-2026-40074: Svelte SvelteKit denial of service in redirect functionhighCVSS 7.5EPSS 0.6%
- CVE-2026-82259: SvelteKit versions from 2.49.0 through 2.53.2 (fixed in 2.53.3) contain a deserialization expansion issue in the…highCVSS 7.5EPSS 0.5%
- CVE-2026-82261: SvelteKit (@sveltejs/kit) versions >=2.49.0 and <=2.52.1 with experimental remote functions and form enabled contain a CPU…highCVSS 7.5EPSS 0.5%
- CVE-2026-82260: SvelteKit (@sveltejs/kit) versions >=2.49.0 and <=2.52.1 with experimental remote functions (experimental.remoteFunctions)…highCVSS 7.5EPSS 0.5%
- CVE-2026-66062: Svelte SvelteKit ReDoS in Accept header content negotiationmediumCVSS 5.3EPSS 0.5%
- CVE-2026-82256: SvelteKit before 2.69.1 fails to properly validate remote form function payload sizes, allowing attackers to crash the…mediumCVSS 5.3EPSS 0.4%
- Svelte SvelteKit Denial of Service via large form payloadsmediumCVSS 5.3
- CVE-2026-82258: SvelteKit versions from 2.38.0 before 2.60.1 contain a race condition in query.batch that allows concurrent requests from…mediumCVSS 4.8EPSS 0.2%
- CVE-2026-82257: SvelteKit versions before 2.69.1 contain a prototype pollution vulnerability in remote form functions with file input…mediumCVSS 4.3EPSS 0.4%
Vulnerabilities per week
The last 13 weeks, by the week each vulnerability was published.
| Week of | Bar | Vulns | Critical |
|---|---|---|---|
| 29 Jun 2026 | 0 | 0 | |
| 6 Jul 2026 | 0 | 0 | |
| 13 Jul 2026 | 0 | 0 | |
| 20 Jul 2026 | 2 | 0 | |
| 27 Jul 2026 | 0 | 0 | |
| 3 Aug 2026 | 1 | 0 | |
| 10 Aug 2026 | 0 | 0 | |
| 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 |
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, 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, 26 September 2026.