CVEvulnerability

CVE-2026-107297

5.9 MEDIUM Published 2026-10-08 Modified 2026-10-08 Official page ↗
Status
Deferred
Published
2026-10-08
Last modified
2026-10-08
Assigner
[email protected]
CVSS 3.1 ([email protected])
5.9 MEDIUM — CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
Weaknesses
CWE-407

Description

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 elements to be decoded repeatedly, producing quadratic CPU use and blocking the event loop. This issue is fixed in version 6.1.0.

Related

Weakness · CWE (1)

  • CWE-407 Inefficient Algorithmic Complexity weakness

References