What is the vulnerability ID for this issue?

The vulnerability ID for this issue is CVE-2021-31522.

What is the severity level of CVE-2021-31522?

CVE-2021-31522 has a severity level of critical (9.8).

What is the impact of CVE-2021-31522?

CVE-2021-31522 allows an attacker to provide user input and load any class, potentially leading to remote code execution.

Are there any references available for CVE-2021-31522?

Yes, you can find more information about CVE-2021-31522 at the following references: [Reference 1](http://www.openwall.com/lists/oss-security/2022/01/06/4) and [Reference 2](https://lists.apache.org/thread/hh5crx3yr701zd8wtpqo1mww2rlkvznw).

Vulnerability/
CVE-2021-31522

critical

9.8

CWE

470

6/1/2022

3/8/2024

CVE-2021-31522: Apache Kylin unsafe class loading

Q: Which versions of Apache Kylin are affected by CVE-2021-31522?

CVE-2021-31522 affects Apache Kylin 2 version 2.6.6 and prior versions, Apache Kylin 3 version 3.1.2 and prior versions, and Apache Kylin 4 version 4.0.0 and prior versions.

First published: Thu Jan 06 2022(Updated: )

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.

Credit: security@apache.org

Affected Software	Affected Version	How to fix
Apache Kylin	>=2.0.0<=2.6.6
Apache Kylin	>=3.0.0<3.1.3
Apache Kylin	=4.0.0
Apache Kylin	=4.0.0-alpha
Apache Kylin	=4.0.0-beta

Remedy

http://www.openwall.com/lists/oss-security/2022/01/06/4

Remedy

https://lists.apache.org/thread/hh5crx3yr701zd8wtpqo1mww2rlkvznw

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Reference Links

Frequently Asked Questions

What is the vulnerability ID for this issue?
The vulnerability ID for this issue is CVE-2021-31522.
What is the severity level of CVE-2021-31522?
CVE-2021-31522 has a severity level of critical (9.8).
Which versions of Apache Kylin are affected by CVE-2021-31522?
CVE-2021-31522 affects Apache Kylin 2 version 2.6.6 and prior versions, Apache Kylin 3 version 3.1.2 and prior versions, and Apache Kylin 4 version 4.0.0 and prior versions.
What is the impact of CVE-2021-31522?
CVE-2021-31522 allows an attacker to provide user input and load any class, potentially leading to remote code execution.
Are there any references available for CVE-2021-31522?
Yes, you can find more information about CVE-2021-31522 at the following references: [Reference 1](http://www.openwall.com/lists/oss-security/2022/01/06/4) and [Reference 2](https://lists.apache.org/thread/hh5crx3yr701zd8wtpqo1mww2rlkvznw).

collector/nvd-index
agent/references
collector/mitre-cve
source/MITRE
agent/weakness
agent/severity
agent/title
agent/author
agent/last-modified-date
agent/remedy
agent/softwarecombine
agent/type
agent/event
agent/tags
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agent/first-publish-date
vendor/apache
canonical/apache kylin
version/apache kylin/2.0.0
version/apache kylin/2.6.6
version/apache kylin/3.0.0
version/apache kylin/4.0.0
version/apache kylin/4.0.0-alpha
version/apache kylin/4.0.0-beta

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