VULNERABILITY INTELLIGENCE

CVE-2023-52079

CVSS score6.8 MEDIUM
EPSS probability0.69%
CISA KEVNot currently listed
Published2023-12-28
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:N/A:H

Description

msgpackr is a fast MessagePack NodeJS/JavaScript implementation. Prior to 1.10.1, when decoding user supplied MessagePack messages, users can trigger stuck threads by crafting messages that keep the decoder stuck in a loop. The fix is available in v1.10.1. Exploits seem to require structured cloning, replacing the 0x70 extension with your own (that throws an error or does something other than recursive referencing) should mitigate the issue.

Weakness classification

  • security-advisories@github.com: CWE-674
  • nvd@nist.gov: CWE-674

Primary references