CVE-2023-52079CWE-674CWE-754

Conversion of property names to strings can trigger infinite recursion

Medium · published December 28, 2023

CVSS v3.1
6.8
EPSS
1%
Percentile
52.0
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
6.8 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:N/A:H
CVSS v4.0
Not supplied
EPSS
0.00685 · 52.0th percentile
Weaknesses
CWE-674 · Uncontrolled Recursion; CWE-754 · Improper Check for Unusual or Exceptional Conditions
Published
2023-12-28T15:20Z
EPSS history
Timeline
  • 28 DEC 15:20Z
    Conversion of property names to strings can trigger infinite recursion
    cvelistv5