Inefficient Algorithmic Complexity Affecting cjson package, versions [0,]


Severity

Recommended
0.0
high
0
10

CVSS assessment by Snyk's Security Team. Learn more

Threat Intelligence

EPSS
0.65% (49th percentile)

Do your applications use this vulnerable package?

In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.

Test your applications
  • Snyk IDSNYK-CONAN-CJSON-20078944
  • published24 Sept 2026
  • disclosed29 Jul 2026
  • creditUnknown

Introduced: 29 Jul 2026

CVE-2026-67216  (opens in a new tab)
CWE-407  (opens in a new tab)

How to fix?

There is no fixed version for cjson.

Overview

Affected versions of this package are vulnerable to Inefficient Algorithmic Complexity through the cJSON_Compare function. An attacker can cause excessive CPU consumption by submitting a deeply nested JSON document that is structurally equal to a reference document, leading to significant performance degradation due to exponential time complexity in processing.

CVSS Base Scores

version 4.0
version 3.1