CVE-2026-107301 msgpack5: Partial options disable prototype protection

msgpack5 is a msgpack v5 implementation for node.js and the browser. Prior to 6.1.0, constructing msgpack5 with an empty or partial options object disables the default protoAction: 'error' protection. A decoded map containing a proto key can then replace the decoded object's prototype, potentiall...

EUVD-2026-95112

msgpack5 is a msgpack v5 implementation for node.js and the browser. Prior to 6.1.0, constructing msgpack5 with an empty or partial options object disables the default protoAction: 'error' protection. A decoded map containing a proto key can then replace the decoded object's prototype, potentiall...

EUVD-2026-95111

msgpack5 is a msgpack v5 implementation for node.js and the browser. Prior to 6.1.0, the streaming decoder recursively invokes itself for each complete MessagePack value remaining in a chunk. A remote peer can send one chunk containing many small valid values, causing recursion proportional to th...

CVE-2026-107300 msgpack5: Many buffered values can exhaust the streaming decoder stack

msgpack5 is a msgpack v5 implementation for node.js and the browser. Prior to 6.1.0, the streaming decoder recursively invokes itself for each complete MessagePack value remaining in a chunk. A remote peer can send one chunk containing many small valid values, causing recursion proportional to th...

CVE-2026-107300

The msgpack5 library, a msgpack v5 implementation for node.js and the browser , is vulnerable to a stack exhaustion issue in versions prior to 6.1.0 . The streaming decoder recursively invokes itself for every complete MessagePack value found within a chunk. A remote peer can exploit this by send...

CVE-2026-107299 msgpack5: Reserved byte can cause unbounded stream buffering

msgpack5 is a msgpack v5 implementation for node.js and the browser. Prior to 6.1.0, the streaming decoder treats the reserved MessagePack byte 0xc1 as incomplete input instead of invalid input. When 0xc1 begins a stream, subsequent data remains buffered while the decoder waits for bytes that...

EUVD-2026-95110

msgpack5 is a msgpack v5 implementation for node.js and the browser. Prior to 6.1.0, the streaming decoder treats the reserved MessagePack byte 0xc1 as incomplete input instead of invalid input. When 0xc1 begins a stream, subsequent data remains buffered while the decoder waits for bytes that...

CVE-2026-107299

The msgpack5 library, a MessagePack v5 implementation for Node.js and browsers, is vulnerable in versions prior to 6.1.0 . The streaming decoder incorrectly treats the reserved MessagePack byte 0xc1 as incomplete input rather than invalid input. When this byte begins a stream, subsequent data rem...

EUVD-2026-95109

msgpack5 is a msgpack v5 implementation for node.js and the browser. Prior to 6.1.0, the array and map decoding paths have no nesting-depth limit, allowing an attacker who can provide MessagePack input to submit deeply nested containers that exhaust the JavaScript call stack and interrupt a...

CVE-2026-107298

The msgpack5 library, an implementation for node.js and the browser , is vulnerable to a Denial of Service (DoS) condition prior to version 6.1.0 . The root cause is a lack of nesting-depth limits in the array and map decoding paths. An attacker providing malicious MessagePack input can submit de...

CVE-2026-107298 msgpack5: Deeply nested input can exhaust the decoder stack

msgpack5 is a msgpack v5 implementation for node.js and the browser. Prior to 6.1.0, the array and map decoding paths have no nesting-depth limit, allowing an attacker who can provide MessagePack input to submit deeply nested containers that exhaust the JavaScript call stack and interrupt a...

CVE-2026-107298

msgpack5 is a msgpack v5 implementation for node.js and the browser. Prior to 6.1.0, the array and map decoding paths have no nesting-depth limit, allowing an attacker who can provide MessagePack input to submit deeply nested containers that exhaust the JavaScript call stack and interrupt a...

EUVD-2026-95108

msgpack5 is a msgpack v5 implementation for node.js and the browser. Prior to 6.1.0, the streaming decoder reparses an incomplete array or map from the beginning whenever another chunk arrives. A remote peer can split one valid MessagePack container across many small chunks, causing completed...

CVE-2026-107297

The msgpack5 library (a msgpack v5 implementation for Node.js and the browser) is vulnerable to a quadratic CPU use issue in versions prior to 6.1.0 . The streaming decoder reparses incomplete arrays or maps from the beginning every time a new chunk arrives. A remote peer can exploit this by spli...

CVE-2026-107297 msgpack5: Quadratic parsing in the streaming decoder

msgpack5 is a msgpack v5 implementation for node.js and the browser. Prior to 6.1.0, the streaming decoder reparses an incomplete array or map from the beginning whenever another chunk arrives. A remote peer can split one valid MessagePack container across many small chunks, causing completed...

CVE-2026-107296 msgpack5: Decoding negative int64 values mutates the input buffer

msgpack5 is a msgpack v5 implementation for node.js and the browser. Prior to 6.1.0, decoding a negative signed 64-bit integer modifies the corresponding bytes in the caller-provided input buffer while computing the value. Applications that retain or reuse encoded input for integrity checks,...

CVE-2026-107296

The msgpack5 library, a msgpack v5 implementation for Node.js and the browser , contains a vulnerability in versions prior to 6.1.0 . When decoding a negative signed 64-bit integer , the library modifies the corresponding bytes in the caller-provided input buffer during value computation. This ca...

EUVD-2026-95107

msgpack5 is a msgpack v5 implementation for node.js and the browser. Prior to 6.1.0, decoding a negative signed 64-bit integer modifies the corresponding bytes in the caller-provided input buffer while computing the value. Applications that retain or reuse encoded input for integrity checks,...

EUVD-2021-0658

Malware in sbrugna...

CVE-2021-21368

msgpack5 is a msgpack v5 implementation for node.js and the browser. In msgpack5 before versions 3.6.1, 4.5.1, and 5.2.1 there is a "Prototype Poisoning" vulnerability. When msgpack5 decodes a map containing a key "proto", it assigns the decoded value to proto. Object.prototype.proto is an access...