# Log4J vulnerability

**URL:** <https://discourse.nodered.org/t/log4j-vulnerability/55181>\
**Category:** General\
**Created:** [14 December 2021 14:15 UTC](https://discourse.nodered.org/t/log4j-vulnerability/55181 "2021-12-14T14:15:47Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![MOW](https://avatars.discourse-cdn.com/v4/letter/m/7ab992/32.png) [@MOW](https://discourse.nodered.org/u/MOW)\
**Post date:** [14 December 2021 14:15 UTC](https://discourse.nodered.org/t/log4j-vulnerability/55181/1 "2021-12-14T14:15:47Z")

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Hi everybody,

does anybody know, how can I find out, if the Log4J Lib is used in nodes I use or in the node-red enviroment itself?

Thanks to all.

MOW

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**Author:** ![hardillb](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/hardillb/32/12373_2.png) [@hardillb](https://discourse.nodered.org/u/hardillb)\
**Post date:** [14 December 2021 14:20 UTC](https://discourse.nodered.org/t/log4j-vulnerability/55181/2 "2021-12-14T14:20:26Z")

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Log4J is a Java Library, not a JavaScript library

It will not be used by any node-red apps

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**Author:** ![system](https://us1.discourse-cdn.com/flex026/uploads/nodered/original/1X/d073cd938eafa2e558d7c2cd59003b3ef4963033.png) [@system](https://discourse.nodered.org/u/system)\
**Post date:** [12 February 2022 14:20 UTC](https://discourse.nodered.org/t/log4j-vulnerability/55181/3 "2022-02-12T14:20:33Z")

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