CVE-2026-30226

A flaw was found in the Svelte devalue JavaScript library. A remote attacker could exploit a prototype pollution vulnerability by sending maliciously crafted payloads to the devalue.parse or devalue.unflatten functions. Successful exploitation of this flaw could lead to a Denial of Service DoS...

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 earlier, devalue.parse and devalue.unflatten were susceptible to prototype pollution via maliciously crafted payloads. Successful exploitation could...

Denial Of Service (DoS)

Svelte devalue is vulnerable to a Denial-Of-Service DoS. The vulnerability is due to missing input validation during typed array hydration, where devalue.parse assumes an ArrayBuffer input without verification, allowing crafted inputs to trigger excessive CPU or memory consumption when parsing...

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, certain inputs can cause devalue.parse to consume excessive CPU time and/or memory, potentially leading to denial of service in systems that parse inpu...

CVE-2026-22774

CVE-2026-22774 affects the Svelte devalue library. From versions 5.3.0 through 5.6.1, certain inputs trigger devalue.parse to consume excessive CPU time and memory when processing untrusted data, potentially causing denial of service. Root cause: typed array hydration assumes an ArrayBuffer input...

CVE-2026-22774 devalue vulnerable to denial of service due to memory exhaustion in devalue.parse

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, certain inputs can cause devalue.parse to consume excessive CPU time and/or memory, potentially leading to denial of service in systems that parse inpu...

EUVD-2026-2790

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, certain inputs can cause devalue.parse to consume excessive CPU time and/or memory, potentially leading to denial of service in systems that parse inpu...

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, certain inputs can cause devalue.parse to consume excessive CPU time and/or memory, potentially leading to denial of service in systems that parse inpu...

PT-2026-3092

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, certain inputs can cause devalue.parse to consume excessive CPU time and/or memory, potentially leading to denial of service in systems that parse inpu...

CVE-2025-57820

Svelte 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.parse does not check that an index is numeric. This could result in assigning prototypes to objects and properties, leading to prototype...

CVE-2025-57820 Svelte devalue vulnerable to prototype pollution

Svelte 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.parse does not check that an index is numeric. This could result in assigning prototypes to objects and properties, leading to prototype...

CVE-2025-57820

CVE-2025-57820 affects the JavaScript library devalue (used with Svelte). Prior to version 5.3.2, parsing payloads with devalue.parse could allow a proto property and non-numeric indices to be treated in dangerous ways, enabling prototype pollution on objects via the prototype chain. The issue is...

PT-2025-34819 · Unknown · Svelte Devalue

Name of the Vulnerable Software and Affected Versions: Svelte devalue versions prior to 5.3.2 Description: Svelte devalue is a utility library susceptible to prototype pollution. Passing a string to devalue.parse that represents an object with a proto property, without numeric index checking, can...