# Logstash is affected by Apache Log4j2 2.17.0 Vulnerability CVE-2021-44832?

**URL:** https://discuss.elastic.co/t/logstash-is-affected-by-apache-log4j2-2-17-0-vulnerability-cve-2021-44832/293162
**Category:** Logstash
**Created:** [December 30, 2021, 1:51am UTC](https://discuss.elastic.co/t/logstash-is-affected-by-apache-log4j2-2-17-0-vulnerability-cve-2021-44832/293162 "2021-12-30T01:51:17Z")
**Posts on this page:** 5
**Page:** 1

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### Author: ![swxEmily](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/swxemily/32/99555_2.png) [@swxEmily](https://discuss.elastic.co/u/swxEmily)
#### Post date: [December 30, 2021, 1:51am UTC](https://discuss.elastic.co/t/logstash-is-affected-by-apache-log4j2-2-17-0-vulnerability-cve-2021-44832/293162/1 "2021-12-30T01:51:17Z")

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Apache Log4j2 2.17.0 report a new Vulnerability CVE-2021-44832, is Logstash affected or not?

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### Author: ![xeraa](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/xeraa/32/48181_2.png) [@xeraa](https://discuss.elastic.co/u/xeraa)
#### Post date: [January 2, 2022, 12:50am UTC](https://discuss.elastic.co/t/logstash-is-affected-by-apache-log4j2-2-17-0-vulnerability-cve-2021-44832/293162/2 "2022-01-02T00:50:56Z")

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We will update the [official advisory](https://discuss.elastic.co/t/apache-log4j2-remote-code-execution-rce-vulnerability-cve-2021-44228-esa-2021-31/291476).

Sidenote: This security issue has a very strong precondition — attackers need to be able to change the logging configuration. Generally that means already being admin on the system.

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### Author: ![oconnormj](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/oconnormj/32/99889_2.png) [@oconnormj](https://discuss.elastic.co/u/oconnormj)
#### Post date: [January 5, 2022, 6:17pm UTC](https://discuss.elastic.co/t/logstash-is-affected-by-apache-log4j2-2-17-0-vulnerability-cve-2021-44832/293162/3 "2022-01-05T18:17:51Z")

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When will the Elastic log4j advisory be updated to account for CVE-2021-44832?  
Hopefully, the answer is "today". 😉

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### Author: ![xeraa](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/xeraa/32/48181_2.png) [@xeraa](https://discuss.elastic.co/u/xeraa)
#### Post date: [January 6, 2022, 2:08am UTC](https://discuss.elastic.co/t/logstash-is-affected-by-apache-log4j2-2-17-0-vulnerability-cve-2021-44832/293162/4 "2022-01-06T02:08:51Z")

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Just came out.

Today" is a complicated concept in a global community 😅

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### Author: ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)
#### Post date: [February 3, 2022, 2:09am UTC](https://discuss.elastic.co/t/logstash-is-affected-by-apache-log4j2-2-17-0-vulnerability-cve-2021-44832/293162/5 "2022-02-03T02:09:03Z")

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