CVE-2026-46681 @nevware21/ts-utils: Prototype Pollution in objDeepCopy/objCopyProps via for...in without hasOwnProperty

@nevware21/ts-utils is a comprehensive TypeScript/JavaScript utility library. Prior to version 0.14.0, the copyProps function in lib/src/object/copy.ts uses for...in to iterate over source object properties without an Object.hasOwnProperty check, and does not filter dangerous keys proto,...

CVE-2026-46681 @nevware21/ts-utils: Prototype Pollution in objDeepCopy/objCopyProps via for...in without hasOwnProperty

@nevware21/ts-utils is a comprehensive TypeScript/JavaScript utility library. Prior to version 0.14.0, the copyProps function in lib/src/object/copy.ts uses for...in to iterate over source object properties without an Object.hasOwnProperty check, and does not filter dangerous keys proto,...

CVE-2026-46681 @nevware21/ts-utils: Prototype Pollution in objDeepCopy/objCopyProps via for...in without hasOwnProperty

@nevware21/ts-utils is a comprehensive TypeScript/JavaScript utility library. Prior to version 0.14.0, the copyProps function in lib/src/object/copy.ts uses for...in to iterate over source object properties without an Object.hasOwnProperty check, and does not filter dangerous keys proto,...

CVE-2026-46681

CVE-2026-46681 affects the npm package @nevware21/ts-utils. Prior to version 0.14.0, the internal _copyProps function in lib/src/object/copy.ts iterates over source properties with for...in without an Object.hasOwnProperty check and does not filter dangerous keys (proto , constructor, prototype)....

CVE-2026-48819 Hey API: `buildClientParams` template: prototype chain substitution via unknown `$<slot>___proto__` key

Hey API is an ecosystem for turning API specifications into production-ready code. Prior to 0.97.3, dist/clients/core/params.ts ships a runtime template copied into generated SDKs as params.gen.ts, and buildClientParams writes unknown slot-prefixed keys such as $body, $headers, $path, and $query...

CVE-2026-46625 JavaScript Cookie: Per-instance prototype hijack in assign() enables cookie-attribute injection

JavaScript Cookie is a JavaScript API for handling cookies, client-side. Prior to version 3.0.7, js-cookie's internal assign helper copies properties with for...in + plain assignment. When the source object is produced by JSON.parse, the JSON object's "proto" member is an own enumerable property,...

JavaScript Cookie 安全漏洞

JavaScript Cookie is a lightweight JavaScript cookie operation library developed by js-cookie. Versions of JavaScript Cookie prior to 3.0.7 contained security vulnerabilities. These vulnerabilities stemmed from the use of the for...in loop and standard assignment methods to copy properties within...

@nevware21/ts-utils: Prototype Pollution in objDeepCopy/objCopyProps via for...in without hasOwnProperty

Summary The copyProps function in lib/src/object/copy.ts uses for...in to iterate over source object properties without an Object.hasOwnProperty check, and does not filter dangerous keys proto, constructor, prototype. This allows an attacker to pollute the prototype chain of all objects in the...

GHSA-X7J8-49R8-MR43 @nevware21/ts-utils: Prototype Pollution in objDeepCopy/objCopyProps via for...in without hasOwnProperty

Summary The copyProps function in lib/src/object/copy.ts uses for...in to iterate over source object properties without an Object.hasOwnProperty check, and does not filter dangerous keys proto, constructor, prototype. This allows an attacker to pollute the prototype chain of all objects in the...

PT-2026-42689

Name of the Vulnerable Software and Affected Versions js-cookie versions prior to 3.0.7 Description The internal assign function copies properties using a for...in loop and plain assignment. When a source object is created via JSON.parse, the proto member is treated as an own enumerable property...

lodash: lodash: Arbitrary code execution via untrusted input in template imports

A flaw was found in lodash. The fix for CVE-2021-23337 added validation for the variable option in .template but did not apply the same validation to options.imports key names. Both paths flow into the same Function constructor sink. Additionally, .template uses assignInWith to merge imports, whi...

CVE-2025-65570

A type confusion in jsish 2.0 allows incorrect control flow during execution of the OPNEXT opcode. When an “instanceof” expression uses an array element access as the left-hand operand inside a for-in loop, the instructions implementation leaves an additional array reference on the stack rather...

EUVD-2025-205581

A type confusion in jsish 2.0 allows incorrect control flow during execution of the OPNEXT opcode. When an “instanceof” expression uses an array element access as the left-hand operand inside a for-in loop, the instructions implementation leaves an additional array reference on the stack rather...

CVE-2025-65570

A type confusion in jsish 2.0 allows incorrect control flow during execution of the OPNEXT opcode. When an “instanceof” expression uses an array element access as the left-hand operand inside a for-in loop, the instructions implementation leaves an additional array reference on the stack rather...

CVE-2025-65570

CVE-2025-65570 describes a type confusion in jsish 2.0 where, inside a for-in loop, an array element access used as the left-hand operand in an instanceof expression leaves an extra array reference on the stack. When OP_NEXT runs, it may treat the array as an iterator object and read an invalid f...

CVE-2025-65570

A type confusion in jsish 2.0 allows incorrect control flow during execution of the OPNEXT opcode. When an “instanceof” expression uses an array element access as the left-hand operand inside a for-in loop, the instructions implementation leaves an additional array reference on the stack rather...

PT-2025-53725

A type confusion in jsish 2.0 allows incorrect control flow during execution of the OP NEXT opcode. When an “instanceof” expression uses an array element access as the left-hand operand inside a for-in loop, the instructions implementation leaves an additional array reference on the stack rather...

CVE-2025-65570

A type confusion in jsish 2.0 allows incorrect control flow during execution of the OPNEXT opcode. When an “instanceof” expression uses an array element access as the left-hand operand inside a for-in loop, the instructions implementation leaves an additional array reference on the stack rather...

CVE-2025-65570

A type confusion in jsish 2.0 allows incorrect control flow during execution of the OPNEXT opcode. When an “instanceof” expression uses an array element access as the left-hand operand inside a for-in loop, the instructions implementation leaves an additional array reference on the stack rather...

WebKit: JSC: Incorrect for-in optimization #2(CVE-2017-7117)

No description provided by source. The following PoC bypasses the fix for the https://www.seebug.org/vuldb/ssvid-96629. PoC: function f let o = ; for let i in xx: 0 for i of 0 printoi; f;...