# Does logstash use openssl?

**URL:** <https://discuss.elastic.co/t/does-logstash-use-openssl/269827>\
**Category:** Logstash\
**Created:** [April 12, 2021, 2:23am UTC](https://discuss.elastic.co/t/does-logstash-use-openssl/269827 "2021-04-12T02:23:44Z")\
**Posts on this page:** 6\
**Page:** 1

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**Author:** ![TakaSeki](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/takaseki/32/78611_2.png) [@TakaSeki](https://discuss.elastic.co/u/TakaSeki)\
**Post date:** [April 12, 2021, 2:23am UTC](https://discuss.elastic.co/t/does-logstash-use-openssl/269827/1 "2021-04-12T02:23:44Z")

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Does logstash use openssl when using the SSL / TLS protocol?

If so, where can I find the version of openssl?

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**Author:** ![warkolm](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/warkolm/32/39224_2.png) [@warkolm](https://discuss.elastic.co/u/warkolm)\
**Post date:** [April 12, 2021, 4:25am UTC](https://discuss.elastic.co/t/does-logstash-use-openssl/269827/2 "2021-04-12T04:25:27Z")

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Welcome to our community! 😃

I'm not sure of this myself, hopefully someone can clarify. But what's the reason for asking this?

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**Author:** ![Badger](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/badger/32/25190_2.png) [@Badger](https://discuss.elastic.co/u/Badger)\
**Post date:** [April 12, 2021, 4:22pm UTC](https://discuss.elastic.co/t/does-logstash-use-openssl/269827/3 "2021-04-12T16:22:01Z")

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> [@TakaSeki](#):
>
> Does logstash use openssl when using the SSL / TLS protocol?

That depends on which filter you are using. A tcp input uses netty, and netty uses OpenSSL. The elasticsearch filters use cheald's manticore, which is built upon the Apache http client, which uses JSSE.

JRuby-OpenSSL uses Bouncy Castle to emulate OpenSSL. It does not use OpenSSL.

If you want to know versions I would suggest building logstash from source and seeing what dependencies get pulled.

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**Author:** ![TakaSeki](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/takaseki/32/78611_2.png) [@TakaSeki](https://discuss.elastic.co/u/TakaSeki)\
**Post date:** [April 13, 2021, 12:25am UTC](https://discuss.elastic.co/t/does-logstash-use-openssl/269827/4 "2021-04-13T00:25:42Z")

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Thank you for your reply.

If logstash uses openssl, we wanted to see if that version was vulnerable.

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**Author:** ![TakaSeki](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/takaseki/32/78611_2.png) [@TakaSeki](https://discuss.elastic.co/u/TakaSeki)\
**Post date:** [April 13, 2021, 12:41am UTC](https://discuss.elastic.co/t/does-logstash-use-openssl/269827/5 "2021-04-13T00:41:09Z")

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Thank you for your reply.

I'm going to build logstash from source and check it.

It was helpful. Thank you

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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:** [May 11, 2021, 12:41am UTC](https://discuss.elastic.co/t/does-logstash-use-openssl/269827/6 "2021-05-11T00:41:10Z")

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