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Published Jul. 2, 2025

CVE-2021-27568 json-smart v2 through v2.4

Written By

Ankit Gupta

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Issue

  • Steps to Reproduce:

    The json-smart.jar's can be found here:

    osgi/marketplace/Liferay%20Forms%20and%20Workflow%20-%20Liferay%20Dynamic%20Data%20Mapping%20-%20Impl.lpkg/com.liferay.dynamic.data.mapping.data.provider.impl-3.0.17.jar/lib/json-smart-2.2.1.jar

    osgi/marketplace/Liferay%20Foundation%20-%20Liferay%20Security%20SSO%20-%20Impl.lpkg/com.liferay.portal.security.sso.openid.connect.impl-4.0.42.jar/lib/json-smart-2.3.jar

    Notes:
    Based on https://nvd.nist.gov/vuln/detail/CVE-2021-27568, the solution is to catch more exceptions in JSONParserBase.java. This class exists in our json-smart libraries.

    Expected behavior:

    Liferay 7.2 is not vulnerable to CVE-2021-27568

    Actual Behavior:

    Liferay 7.2 appears to be vulnerable to CVE-2021-27568.

Environment

  • Liferay DXP 7.2
  • Liferay DXP 7.3

Resolution

  • The observed behavior is a known issue and is fixed in liferay-fix-pack-dxp-14 for 7.2.
  • The observed behavior is a known issue and is fixed in liferay-fix-pack-dxp-2 for 7.3.
  • Installing Fix Packs and Hotfixes on Liferay DXP will guide to install these Fixpack in your environment.
  • Issue is resolved in version 2.4.2 for both accessors-smart and json-smart jars.
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