CVE-2026-114613: MessagePack: Unbounded memory leak in msgpack C extension on strict_map_key validation failure

Overview

Severity
High (CVSS 7.5)
CVSS Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Exploit Status
Not Exploited
Patch Tuesday
2026-Oct
Released
2026-10-25
Last Updated
2026-10-26
EPSS Score
0.44% (percentile: 38.0%)

Affected Products (1)

Other

  • 22073-17084

Revision History

  • 2026-10-25: Information published.
  • 2026-10-26: Information published.