CVE-2026-107300

HIGH Status: Received

CVSS Scores

CVSS v3.x Base Score
7.5
HIGH

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.

Published
October 8, 2026 5:17 PM
Last Modified
October 8, 2026 6:17 PM
Source
[email protected]

Weaknesses (CWE)

CWE-674

References

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