CVE-2025-62492 Heap out-of-bounds read in js_typed_array_indexOf in QuickJS

A vulnerability stemming from floating-point arithmetic precision errors exists in the QuickJS engine's implementation of TypedArray.prototype.indexOf when a negative fromIndex argument is supplied. The fromIndex argument read as a double variable, $d$ is used to calculate the starting position f...

CVE-2025-62491 Use-after-free in js_std_promise_rejection_check in QuickJS

A Use-After-Free UAF vulnerability exists in the QuickJS engine's standard library when iterating over the global list of unhandled rejected promises ts-rejectedpromiselist. The function jsstdpromiserejectioncheck attempts to iterate over the rejectedpromiselist to report unhandled rejections usi...

CVE-2025-62491

The CVE-2025-62491 entry concerns a Use-After-Free (UAF) in the QuickJS engine’s standard library. The vulnerability occurs in js_std_promise_rejection_check when iterating the global rejected_promise_list; during error reporting, rp->reason may be an Error with a custom property getter, and e...

CVE-2025-62491 Use-after-free in js_std_promise_rejection_check in QuickJS

A Use-After-Free UAF vulnerability exists in the QuickJS engine's standard library when iterating over the global list of unhandled rejected promises ts-rejectedpromiselist. The function jsstdpromiserejectioncheck attempts to iterate over the rejectedpromiselist to report unhandled rejections usi...

CVE-2025-62491

A Use-After-Free UAF vulnerability exists in the QuickJS engine's standard library when iterating over the global list of unhandled rejected promises ts-rejectedpromiselist. The function jsstdpromiserejectioncheck attempts to iterate over the rejectedpromiselist to report unhandled rejections usi...

CVE-2025-62491

A Use-After-Free UAF vulnerability exists in the QuickJS engine's standard library when iterating over the global list of unhandled rejected promises ts-rejectedpromiselist. The function jsstdpromiserejectioncheck attempts to iterate over the rejectedpromiselist to report unhandled rejections usi...

CVE-2025-62490

In quickjs, in jsprintobject, when printing an array, the function first fetches the array length and then loops over it. The issue is, printing a value is not side-effect free. An attacker-defined callback could run during jsprintvalue, during which the array could get resized and len1 become ou...

CVE-2025-62490 Use-after-free in js_print_object in QuickJS

In quickjs, in jsprintobject, when printing an array, the function first fetches the array length and then loops over it. The issue is, printing a value is not side-effect free. An attacker-defined callback could run during jsprintvalue, during which the array could get resized and len1 become ou...

CVE-2025-62490 Use-after-free in js_print_object in QuickJS

In quickjs, in jsprintobject, when printing an array, the function first fetches the array length and then loops over it. The issue is, printing a value is not side-effect free. An attacker-defined callback could run during jsprintvalue, during which the array could get resized and len1 become ou...

CVE-2025-62490

CVE-2025-62490 affects QuickJS: in js_print_object, during printing of arrays, maps, or sets, the code reads the length and iterates, but printing a value is not side-effect free. An attacker-defined callback during js_print_value could resize or remove items (e.g., in an array or ms->records)...

CVE-2025-62490

In quickjs, in jsprintobject, when printing an array, the function first fetches the array length and then loops over it. The issue is, printing a value is not side-effect free. An attacker-defined callback could run during jsprintvalue, during which the array could get resized and len1 become ou...

CVE-2025-62492: Out-of-bounds Read

A vulnerability stemming from floating-point arithmetic precision errors exists in the QuickJS engine's implementation of TypedArray.prototype.indexOf when a negative fromIndex argument is supplied. The fromIndex argument read as a double variable, $d$ is used to calculate the starting position f...

CVE-2025-62490: Use After Free

In quickjs, in jsprintobject, when printing an array, the function first fetches the array length and then loops over it. The issue is, printing a value is not side-effect free. An attacker-defined callback could run during jsprintvalue, during which the array could get resized and len1 become ou...

CVE-2025-62494: Incorrect Type Conversion or Cast

A type confusion vulnerability exists in the handling of the string addition + operation within the QuickJS engine. The code first checks if the left-hand operand is a string. It then attempts to convert the right-hand operand to a primitive value using JSToPrimitiveFree. This conversion can...

QuickJS 安全漏洞

QuickJS is a small and embeddable Javascript engine open-sourced by QuickJS. A security vulnerability exists in QuickJS, which stems from the jsprintobject function not properly handling array size changes during callbacks when printing arrays and collection objects, potentially leading to reuse...

PT-2025-42490

Name of the Vulnerable Software and Affected Versions QuickJS affected versions not specified Description An issue exists in the QuickJS engine’s BigInt string conversion logic within the js bigint to string1 function. This is due to an incorrect calculation of the required number of digits,...

CVE-2025-62495: Integer Underflow (Wrap or Wraparound)

An integer overflow vulnerability exists in the QuickJS regular expression engine libregexp due to an inconsistent representation of the bytecode buffer size. The regular expression bytecode is stored in a DynBuf structure, which correctly uses a $\textsize\textt$ an unsigned type, typically...

QuickJS 安全漏洞

QuickJS is a small and embeddable Javascript engine open-sourced by QuickJS. A security vulnerability exists in QuickJS that stems from an integer overflow in the BigInt string parsing logic, which could result in a heap out-of-bounds write...

QuickJS 安全漏洞

QuickJS is a small and embeddable Javascript engine open-sourced by QuickJS. A security vulnerability exists in QuickJS that stems from a post-release reuse issue when handling unprocessed rejected promise lists, which could lead to memory corruption...

QuickJS 安全漏洞

QuickJS is a small and embeddable Javascript engine open-sourced by QuickJS. A security vulnerability exists in QuickJS due to a type confusion when handling string addition operations, which could lead to out-of-bounds memory accesses and memory corruption to execute arbitrary code...