CVE-2025-67647

CVE-2025-67647 affects SvelteKit. Before 2.49.5, it allows server-side request forgery (SSRF) and DoS under prerender conditions. From 2.44.0 to 2.49.4, a DoS can occur if at least one prerendered route exists (export const prerender = true). From 2.19.0 to 2.49.4, DoS/SSRF can occur when there i...

CVE-2025-67647

SvelteKit is a framework for rapidly developing robust, performant web applications using Svelte. Prior to 2.49.5, SvelteKit is vulnerable to a server side request forgery SSRF and denial of service DoS under certain conditions. From 2.44.0 through 2.49.4, the vulnerability results in a DoS when...

CVE-2025-67647 SvelteKit Denial of service and possible SSRF when using prerendering

SvelteKit is a framework for rapidly developing robust, performant web applications using Svelte. Prior to 2.49.5, SvelteKit is vulnerable to a server side request forgery SSRF and denial of service DoS under certain conditions. From 2.44.0 through 2.49.4, the vulnerability results in a DoS when...

CVE-2025-67647 SvelteKit Denial of service and possible SSRF when using prerendering

SvelteKit is a framework for rapidly developing robust, performant web applications using Svelte. Prior to 2.49.5, SvelteKit is vulnerable to a server side request forgery SSRF and denial of service DoS under certain conditions. From 2.44.0 through 2.49.4, the vulnerability results in a DoS when...

Memory Allocation with Excessive Size Value

Overview @sveltejs/kit is a SvelteKit framework and CLI Affected versions of this package are vulnerable to Memory Allocation with Excessive Size Value in the deserializebinaryform function via Remote Form endpoint. An attacker can cause excessive memory allocation by sending a specially crafted...

@sveltejs/kit has memory amplification DoS vulnerability in Remote Functions binary form deserializer (application/x-sveltekit-formdata)

Summary The experimental form remote function uses a binary data format containing a representation of submitted form data. A specially-crafted payload can cause the server to allocate a large amount of memory, causing DoS via memory exhaustion. Details When a form is submitted to a remote functi...

SvelteKit is vulnerable to denial of service and possible SSRF when using prerendering

Summary Versions of SvelteKit are vulnerable to a server side request forgery SSRF and denial of service DoS under certain conditions. Details Affected versions from 2.44.0 onwards are vulnerable to DoS if: - your app has at least one prerendered route export const prerender = true Affected...

Server-side Request Forgery (SSRF)

Overview @sveltejs/kit is a SvelteKit framework and CLI Affected versions of this package are vulnerable to Server-side Request Forgery SSRF due to the improper decoding of protocol headers in resolved path. An attacker can cause the server process to terminate or access internal services by...

PT-2026-3088

Name of the Vulnerable Software and Affected Versions SvelteKit versions 2.19.0 through 2.49.4 Description SvelteKit is susceptible to server side request forgery SSRF and denial of service DoS under specific conditions. The framework, downloaded over 800,000 times per week, is affected in versio...

SvelteKit code issues and vulnerabilities

SvelteKit is an open-source web development framework developed in Svelte. Versions of SvelteKit prior to 2.49.5 had code-related vulnerabilities. These vulnerabilities stemmed from defects under certain conditions and could lead to server-side request forgery and denial-of-service attacks...

SvelteKit security vulnerabilities

SvelteKit is an open-source web development framework developed in Svelte. Versions 2.49.0 to 2.49.4 of SvelteKit contain security vulnerabilities. These vulnerabilities stem from improper handling of special payloads by experimental form-based remote functions, which may lead to a memory...

PT-2026-3094

SvelteKit is a framework for rapidly developing robust, performant web applications using Svelte. From 2.49.0 to 2.49.4, the experimental form remote function uses a binary data format containing a representation of submitted form data. A specially-crafted payload can cause the server to allocate...

CVE-2023-29003

SvelteKit is a web development framework. The SvelteKit framework offers developers an option to create simple REST APIs. This is done by defining a +server.js file, containing endpoint handlers for different HTTP methods. SvelteKit provides out-of-the-box cross-site request forgery CSRF protecti...

CVE-2023-29008

The SvelteKit framework offers developers an option to create simple REST APIs. This is done by defining a +server.js file, containing endpoint handlers for different HTTP methods. SvelteKit provides out-of-the-box cross-site request forgery CSRF protection to its users. The protection is...

Prototype Pollution

sveltekit-superforms is vulnerable to prototype pollution. The vulnerability is due to improper handling of user-supplied data in the parseFormData function of formData.js, which allows an attacker to inject properties into Object.prototype, enabling denial of service, type confusion, and potenti...

Insertion of Sensitive Information Into Sent Data

Overview @sentry/sveltekit is an Official Sentry SDK for SvelteKit Affected versions of this package are vulnerable to Insertion of Sensitive Information Into Sent Data via the sendDefaultPii configuration option. An attacker can gain access to sensitive HTTP headers, such as authentication...

@sentry/nuxt (>=10.11.0, <=10.26.0), @sentry/sveltekit (>=10.11.0, <=10.26.0) potentially affected by CVE-2025-65944 via @sentry/cloudflare (>=10.11.0, <=10.26.0)

@sentry/cloudflare NPM version =10.11.0, =10.11.0, =10.11.0, =10.26.0 Source cves: CVE-2025-65944 Source advisory: SNYK:JS-SENTRYCLOUDFLARE-14105052...

CVE-2025-62381

sveltekit-superforms makes SvelteKit forms a pleasure to use. sveltekit-superforms v2.27.3 and prior are susceptible to a prototype pollution vulnerability within the parseFormData function of formData.js. An attacker can inject string and array properties into Object.prototype, leading to denial...

@nasa-jpl/stellar-svelte (>=2.1.9, <=2.1.10), @scouterdev/ui (0.0.1) +2 more potentially affected by CVE-2025-62381 via sveltekit-superforms (>=2.16.1, <=2.27.1)

sveltekit-superforms NPM version =2.16.1, =2.1.9, =1.3.0, =0.0.2-dev.80, =1.0.9 Source cves: CVE-2025-62381 Source advisory: SNYK:JS-SVELTEKITSUPERFORMS-13559331...

@nasa-jpl/stellar-svelte (>=2.1.9, <=2.1.10), @scouterdev/ui (0.0.1) +2 more potentially affected by CVE-2025-62381 via sveltekit-superforms (>=2.16.1, <=2.27.1)

sveltekit-superforms NPM version =2.16.1, =2.1.9, =1.3.0, =0.0.2-dev.80, =1.0.9 Source cves: CVE-2025-62381 Source advisory: OSV:GHSA-HWMC-4C8J-XXJ7...