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 the value count, exhausting the JavaScript call stack, and interrupting the process or stream. This issue is fixed in version 6.1.0.
Metrics
Affected Vendors & Products
References
History
Fri, 09 Oct 2026 09:15:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| First Time appeared |
Mcollina
Mcollina msgpack5 |
|
| Vendors & Products |
Mcollina
Mcollina msgpack5 |
Thu, 08 Oct 2026 20:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Metrics |
ssvc
|
Thu, 08 Oct 2026 17:15:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | 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 the value count, exhausting the JavaScript call stack, and interrupting the process or stream. This issue is fixed in version 6.1.0. | |
| Title | msgpack5: Many buffered values can exhaust the streaming decoder stack | |
| Weaknesses | CWE-674 | |
| References |
| |
| Metrics |
cvssV3_1
|
Status: PUBLISHED
Assigner: GitHub_M
Published: 2026-10-08T17:11:13.552Z
Updated: 2026-10-08T17:52:48.010Z
Reserved: 2026-10-07T15:53:23.587Z
Link: CVE-2026-107300
Updated: 2026-10-08T17:52:42.623Z
Status : Deferred
Published: 2026-10-08T17:17:16.000
Modified: 2026-10-08T20:48:36.970
Link: CVE-2026-107300
No data.