Sveltejs

35 CVEs across 3 Sveltejs products. Browse Sveltejs vulnerabilities, severities, and proof-of-concept exploits.

Sveltejs products with known CVEs

ProductCVEs
Kit18
Svelte10
Devalue7
Sveltejs CVEs — newest first
CVESeverityScorePublishedSummary
CVE-2026-92708High7.52026-09-18Svelte devalue is a JavaScript library that serializes values into strings when JSON.stringify isn't sufficient for the job. In versions 5.1.0 through 5.9.2, s…
CVE-2026-81176Medium5.32026-09-16Svelte devalue is a JavaScript library that serializes values into strings when JSON.stringify isn't sufficient for the job. Prior to 5.9.2, devalue.parse does…
CVE-2026-82261High7.52026-08-28SvelteKit (@sveltejs/kit) versions >=2.49.0 and <=2.52.1 with experimental remote functions and form enabled contain a CPU exhaustion vulnerability in form des…
CVE-2026-82260High7.52026-08-28SvelteKit (@sveltejs/kit) versions >=2.49.0 and <=2.52.1 with experimental remote functions (experimental.remoteFunctions) and form enabled contain a memory ex…
CVE-2026-82259High7.52026-08-28SvelteKit versions from 2.49.0 through 2.53.2 (fixed in 2.53.3) contain a deserialization expansion issue in the experimental form remote function. When an app…
CVE-2026-82258Medium4.82026-08-28SvelteKit 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 sing…
CVE-2026-82257Medium4.32026-08-28SvelteKit versions before 2.69.1 contain a prototype pollution vulnerability in remote form functions with file input fields that accept arbitrary user-control…
CVE-2026-82256Medium5.32026-08-28SvelteKit before 2.69.1 fails to properly validate remote form function payload sizes, allowing attackers to crash the Node process by sending large payloads…
CVE-2026-66062Medium5.32026-08-07SvelteKit is a framework for rapidly developing robust, performant web applications using Svelte. Prior to 2.70.2, the content negotiation header parser used b…
CVE-2026-42599Medium6.12026-06-09Svelte is a performance oriented web framework. Prior to version 5.55.7, when using spread syntax to render attributes from untrusted data, event handler prope…
CVE-2026-42573Medium6.12026-06-09Svelte is a performance oriented web framework. Prior to version 5.55.7, Svelte was vulnerable to DOM clobbering of its internal framework state on elements, p…
CVE-2026-42570High7.52026-06-09Svelte devalue is a JavaScript library that serializes values into strings when JSON.stringify isn't sufficient for the job. From version 5.6.3 to before versi…
CVE-2026-42567High7.52026-06-09Svelte is a performance oriented web framework. From version 5.51.5 to before version 5.55.7, an internal regex in the Svelte runtime can take exponential time…
CVE-2026-40074High7.52026-04-10SvelteKit is a framework for rapidly developing robust, performant web applications using Svelte. Prior to 2.57.1, redirect, when called from inside the handle…
CVE-2026-40073High7.52026-04-10SvelteKit is a framework for rapidly developing robust, performant web applications using Svelte. Prior to 2.57.1, under certain circumstances, requests could…
CVE-2026-30226High7.52026-03-11Svelte devalue is a JavaScript library that serializes values into strings when JSON.stringify isn't sufficient for the job. In devalue v5.6.3 and earlier, dev…
CVE-2026-27902Medium5.42026-02-26Svelte performance oriented web framework. Prior to version 5.53.5, errors from `transformError` were not correctly escaped prior to being embedded in the HTML…
CVE-2026-27901Medium6.12026-02-26Svelte performance oriented web framework. Prior to version 5.53.5, the contents of `bind:innerText` and `bind:textContent` on `contenteditable` elements were…
CVE-2026-27125Medium6.82026-02-20svelte performance oriented web framework. Prior to 5.51.5, in server-side rendering, attribute spreading on elements (e.g. <div {...attrs}>) enumerates inheri…
CVE-2026-27122Medium5.42026-02-20svelte performance oriented web framework. Prior to 5.51.5, when using <svelte:element this={tag}> in server-side rendering, the provided tag name is not valid…
CVE-2026-27121Medium5.42026-02-20svelte performance oriented web framework. Versions of svelte prior to 5.51.5 are vulnerable to cross-site scripting (XSS) during server-side rendering. When u…
CVE-2026-27119Medium5.42026-02-20svelte performance oriented web framework. From 5.39.3, <=5.51.4, in certain circumstances, the server-side rendering output of an <option> element does not pr…
CVE-2026-271182026-02-20SvelteKit is a framework for rapidly developing robust, performant web applications using Svelte. Versions of @sveltejs/adapter-vercel prior to 6.3.2 are vulne…
CVE-2026-22803High7.52026-01-15SvelteKit 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…
CVE-2026-22775High7.52026-01-15Svelte devalue is a JavaScript library that serializes values into strings when JSON.stringify isn't sufficient for the job. From 5.1.0 to 5.6.1, certain input…
CVE-2026-22774High7.52026-01-15Svelte devalue is a JavaScript library that serializes values into strings when JSON.stringify isn't sufficient for the job. From 5.3.0 to 5.6.1, certain input…
CVE-2025-67647Critical9.12026-01-15SvelteKit is a framework for rapidly developing robust, performant web applications using Svelte. Prior to 2.49.5, SvelteKit is vulnerable to a server side req…
CVE-2025-578202025-08-26Svelte devalue is a utility library. Prior to version 5.3.2, a string passed to devalue.parse could represent an object with a __proto__ property and devalue.p…
CVE-2025-32388Medium5.42025-04-15SvelteKit is a framework for rapidly developing robust, performant web applications using Svelte. Prior to 2.20.6 , unsanitized search param names cause XSS vu…
CVE-2024-53262Medium5.42024-11-25SvelteKit is a framework for rapidly developing robust, performant web applications using Svelte. The static error.html template for errors contains placeholde…
CVE-2024-53261Medium5.42024-11-25SvelteKit is a framework for rapidly developing robust, performant web applications using Svelte. "Unsanitized input from *the request URL* flows into `end`, w…
CVE-2024-45047Medium5.42024-08-30svelte performance oriented web framework. A potential mXSS vulnerability exists in Svelte for versions up to but not including 4.2.19. Svelte improperly escap…
CVE-2024-23641High7.52024-01-24SvelteKit is a web development kit. In SvelteKit 2, sending a GET request with a body eg `{}` to a built and previewed/hosted sveltekit app throws `Request wit…
CVE-2023-29008High8.82023-04-06The SvelteKit framework offers developers an option to create simple REST APIs. This is done by defining a `+server.js` file, containing endpoint handlers for…
CVE-2023-29003High8.82023-04-04SvelteKit is a web development framework. The SvelteKit framework offers developers an option to create simple REST APIs. This is done by defining a `+server.j…