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CVE PROGRAM SOURCE RECORD7.5 High

CVE-2026-107300

msgpack5: Many buffered values can exhaust the streaming decoder stack

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.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

mcollina msgpack5

  • < 6.1.0affected

References