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Vulnerability record · CVE-2021-31522 · published 6 January 2022

CVE-2021-31522: Apache kylin vulnerability

Apache · Kylin

Kylin can receive user input and load any class through Class.forName(...). This issue affects Apache Kylin 2 version 2.6.6 and prior versions; Apache Kylin 3 version 3.1.2 and prior versions; Apache Kylin 4 version 4.0.0 and prior versions.

9.8 CVSS 3.1 Critical EPSS 2.9% · top 13.6% CWE-470 · CWE-470
9.8CVSS 3.1 base score, v2 7.5
2.9%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
4References
17 Jun 2026Last modified by NVD

Description

Kylin can receive user input and load any class through Class.forName(...). This issue affects Apache Kylin 2 version 2.6.6 and prior versions; Apache Kylin 3 version 3.1.2 and prior versions; Apache Kylin 4 version 4.0.0 and prior versions.

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
http://www.openwall.com/lists/oss-security/2022/01/06/4 Mailing ListPatchThird Party Advisory
https://lists.apache.org/thread/hh5crx3yr701zd8wtpqo1mww2rlkvznw PatchVendor Advisory
http://www.openwall.com/lists/oss-security/2022/01/06/4 Mailing ListPatchThird Party Advisory
https://lists.apache.org/thread/hh5crx3yr701zd8wtpqo1mww2rlkvznw PatchVendor Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2021-31522), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.