CVE-2026-30226 devalue has prototype pollution in devalue.parse and devalue.unflatten

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...

CVE-2026-30226 devalue has prototype pollution in devalue.parse and devalue.unflatten

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...

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...

CVE-2026-30226

The CVE relates to the Svelte devalue JavaScript library. Affected versions are 5.6.3 and earlier, where devalue.parse and devalue.unflatten are vulnerable to prototype pollution via malicious payloads. Exploitation can cause Denial of Service (DoS) or type confusion. The issue is mitigated by up...

CVE-2026-30226 devalue has prototype pollution in devalue.parse and devalue.unflatten

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...

EUVD-2026-11105

Versions of the package spin.js before 3.0.0 are vulnerable to Cross-site Scripting XSS via the spin function that allows a creation of more than 1 alert for each 'target' element. An attacker would need to set an arbitrary key-value pair on Object.prototype through a crafted URL achieving a...

CVE-2026-3884

Versions of the package spin.js before 3.0.0 are vulnerable to Cross-site Scripting XSS via the spin function that allows a creation of more than 1 alert for each 'target' element. An attacker would need to set an arbitrary key-value pair on Object.prototype through a crafted URL achieving a...

DEBIAN-CVE-2026-3884

Versions of the package spin.js before 3.0.0 are vulnerable to Cross-site Scripting XSS via the spin function that allows a creation of more than 1 alert for each 'target' element. An attacker would need to set an arbitrary key-value pair on Object.prototype through a crafted URL achieving a...

CVE-2026-3884

Versions of the package spin.js before 3.0.0 are vulnerable to Cross-site Scripting XSS via the spin function that allows a creation of more than 1 alert for each 'target' element. An attacker would need to set an arbitrary key-value pair on Object.prototype through a crafted URL achieving a...

UBUNTU-CVE-2026-3884

Versions of the package spin.js before 3.0.0 are vulnerable to Cross-site Scripting XSS via the spin function that allows a creation of more than 1 alert for each 'target' element. An attacker would need to set an arbitrary key-value pair on Object.prototype through a crafted URL achieving a...

CVE-2026-3884

CVE-2026-3884 affects spin.js versions before 3.0.0. The issue combines prototype pollution via crafted URL targeting Object.prototype, enabling Cross-site Scripting (XSS) through the spin() function (multiple alerts per target). The description does not specify a concrete remediation patch/versi...

CVE-2026-3884

Versions of the package spin.js before 3.0.0 are vulnerable to Cross-site Scripting XSS via the spin function that allows a creation of more than 1 alert for each 'target' element. An attacker would need to set an arbitrary key-value pair on Object.prototype through a crafted URL achieving a...

CVE-2026-3884

Versions of the package spin.js before 3.0.0 are vulnerable to Cross-site Scripting XSS via the spin function that allows a creation of more than 1 alert for each 'target' element. An attacker would need to set an arbitrary key-value pair on Object.prototype through a crafted URL achieving a...

EUVD-2026-11106

Versions of the package spin.js before 3.0.0 are vulnerable to Cross-site Scripting XSS via the spin function that allows a creation of more than 1 alert for each 'target' element. An attacker would need to set an arbitrary key-value pair on Object.prototype through a crafted URL achieving a...

CVE-2026-3884

Versions of the package spin.js before 3.0.0 are vulnerable to Cross-site Scripting XSS via the spin function that allows a creation of more than 1 alert for each 'target' element. An attacker would need to set an arbitrary key-value pair on Object.prototype through a crafted URL achieving a...

CVE-2026-3884

Versions of the package spin.js before 3.0.0 are vulnerable to Cross-site Scripting XSS via the spin function that allows a creation of more than 1 alert for each 'target' element. An attacker would need to set an arbitrary key-value pair on Object.prototype through a crafted URL achieving a...

Prototype Pollution

Overview hono is an Ultrafast web framework for the Edges Affected versions of this package are vulnerable to Prototype Pollution in parseBody, when the dot option is enabled. An attacker can supply objects with proto properties, which may later be merged by other functions in the application,...

GHSA-V8W9-8MX6-G223 Hono vulnerable to Prototype Pollution possible through __proto__ key allowed in parseBody({ dot: true })

Summary When using parseBody dot: true in HonoRequest, specially crafted form field names such as proto.x could create objects containing a proto property. If the parsed result is later merged into regular JavaScript objects using unsafe merge patterns, this may lead to prototype pollution in the...

Hono vulnerable to Prototype Pollution possible through __proto__ key allowed in parseBody({ dot: true })

Summary When using parseBody dot: true in HonoRequest, specially crafted form field names such as proto.x could create objects containing a proto property. If the parsed result is later merged into regular JavaScript objects using unsafe merge patterns, this may lead to prototype pollution in the...

PT-2026-24756

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...