Vulnerability index

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Devalue HIGH 7.5
CVE-2026-42570

Svelte 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 be…

Fix: 5.8.1+
Fix from $1,950 2026-06-09
Svelte HIGH 7.5
CVE-2026-42567

Svelte 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 expone…

Fix: 5.55.7+
Fix from $1,950 2026-06-09
Svelte MEDIUM 6.1
CVE-2026-42573

Svelte is a performance oriented web framework. Prior to version 5.55.7, Svelte was vulnerable to DOM clobbering of its internal framework state on e…

Fix: 5.55.7+
Fix from $1,600 2026-06-09
Svelte MEDIUM 6.1
CVE-2026-42599

Svelte is a performance oriented web framework. Prior to version 5.55.7, when using spread syntax to render attributes from untrusted data, event han…

Fix: 5.55.7+
Fix from $1,600 2026-06-09
Kit HIGH 7.5
CVE-2026-40073

SvelteKit is a framework for rapidly developing robust, performant web applications using Svelte. Prior to 2.57.1, under certain circumstances, reque…

Fix: 2.57.1+
Fix from $1,950 2026-04-10
Kit HIGH 7.5
CVE-2026-40074

SvelteKit is a framework for rapidly developing robust, performant web applications using Svelte. Prior to 2.57.1, redirect, when called from inside …

Fix: 2.57.1+
Fix from $1,950 2026-04-10
Devalue HIGH 7.5
CVE-2026-30226

Svelte 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 ea…

Fix: 5.6.4+
Fix from $1,950 2026-03-11
Svelte MEDIUM 5.4
CVE-2026-27902

Svelte performance oriented web framework. Prior to version 5.53.5, errors from `transformError` were not correctly escaped prior to being embedded i…

Fix: 5.53.5+
Fix from $1,600 2026-02-26
Svelte MEDIUM 6.1
CVE-2026-27901

Svelte performance oriented web framework. Prior to version 5.53.5, the contents of `bind:innerText` and `bind:textContent` on `contenteditable` elem…

Fix: 5.53.5+
Fix from $1,600 2026-02-26
Svelte MEDIUM 6.8
CVE-2026-27125

svelte performance oriented web framework. Prior to 5.51.5, in server-side rendering, attribute spreading on elements (e.g. <div {...attrs}>) enumera…

Fix: 5.51.5+
Fix from $1,600 2026-02-20
Svelte MEDIUM 5.4
CVE-2026-27119

svelte performance oriented web framework. From 5.39.3, <=5.51.4, in certain circumstances, the server-side rendering output of an <option> element d…

Fix: 5.51.5+
Fix from $1,600 2026-02-20
Svelte MEDIUM 5.4
CVE-2026-27121

svelte performance oriented web framework. Versions of svelte prior to 5.51.5 are vulnerable to cross-site scripting (XSS) during server-side renderi…

Fix: 5.51.5+
Fix from $1,600 2026-02-20
Svelte MEDIUM 5.4
CVE-2026-27122

svelte performance oriented web framework. Prior to 5.51.5, when using <svelte:element this={tag}> in server-side rendering, the provided tag name is…

Fix: 5.51.5+
Fix from $1,600 2026-02-20
Svelte MEDIUM 6.1
CVE-2025-15265

An SSR XSS exists in async hydration when attacker‑controlled keys are passed to hydratable. The key is embedded inside a <script> block without HTML…

Fix: 5.46.3+
Fix from $1,600 2026-01-15
Kit HIGH 7.5
CVE-2026-22803

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…

Fix: 2.49.5+
Fix from $1,950 2026-01-15
Devalue HIGH 7.5
CVE-2026-22774

Svelte 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, cer…

Fix: 5.6.2+
Fix from $1,950 2026-01-15
Devalue HIGH 7.5
CVE-2026-22775

Svelte 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, cer…

Fix: 5.6.2+
Fix from $1,950 2026-01-15
Adapter Node CRITICAL 9.1
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 serve…

Fix: 2.49.5 / 5.5.1+
Fix from $2,300 2026-01-15
Sveltekit MEDIUM 5.4
CVE-2024-53261

SvelteKit is a framework for rapidly developing robust, performant web applications using Svelte. "Unsanitized input from *the request URL* flows int…

Fix: 2.8.3+
Fix from $1,600 2024-11-25
Sveltekit MEDIUM 5.4
CVE-2024-53262

SvelteKit is a framework for rapidly developing robust, performant web applications using Svelte. The static error.html template for errors contains …

Fix: 2.8.3+
Fix from $1,600 2024-11-25
Svelte MEDIUM 6.1
CVE-2024-45047

svelte performance oriented web framework. A potential mXSS vulnerability exists in Svelte for versions up to but not including 4.2.19. Svelte improp…

Fix: 4.2.19+
Fix from $1,600 2024-08-30
Adapter Node HIGH 7.5
CVE-2024-23641

SvelteKit 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 `R…

Fix: 2.1.2 / 2.4.3+
Fix from $1,950 2024-01-24
Sveltekit HIGH 8.8
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 han…

Fix: 1.15.2+
Fix from $1,950 2023-04-06
Sveltekit HIGH 8.8
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 …

Fix: 1.15.1+
Fix from $1,950 2023-04-04
Svelte MEDIUM 6.1
CVE-2022-25875

The package svelte before 3.49.0 are vulnerable to Cross-site Scripting (XSS) due to improper input sanitization and to improper escape of attributes…

Fix: 3.49.0+
Fix from $1,600 2022-07-12
Svelte HIGH 7.8
CVE-2021-29261

The unofficial Svelte extension before 104.8.0 for Visual Studio Code allows attackers to execute arbitrary code via a crafted workspace configuratio…

Fix: 104.8.0+
Fix from $1,950 2021-04-05