CVE-2023-26819 Affecting cjson package, versions <1.7.10-1.1ubuntu0.1~esm1


Severity

Recommended
medium

Based on Ubuntu security rating.

Threat Intelligence

EPSS
0.23% (15th percentile)

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  • Snyk IDSNYK-UBUNTU2004-CJSON-9828957
  • published17 Jan 2026
  • disclosed19 Apr 2025

Introduced: 19 Apr 2025

CVE-2023-26819  (opens in a new tab)

How to fix?

Upgrade Ubuntu:20.04 cjson to version 1.7.10-1.1ubuntu0.1~esm1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream cjson package and not the cjson package as distributed by Ubuntu. See How to fix? for Ubuntu:20.04 relevant fixed versions and status.

cJSON 1.7.15 might allow a denial of service via a crafted JSON document such as {"a": true, "b": [ null,9999999999999999999999999999999999999999999999912345678901234567]}.

CVSS Base Scores

version 3.1