We have Elasticsearch 7.8.0 cluster which has CVE-2021-44228. Can we somehow patch it without upgrading the Elasticsearch version? If yes, can you please share any relevant thread or documentation?

[image] Apache Log4j2 Remote Code Execution (RCE) Vulnerability - CVE-2021-44228 - ESA-2021-31 Security Announcements Subject: Apache Log4j2 Vulnerability - CVE-2021-44228, CVE-2021-45046, CVE-2021-45105, CVE-2021-44832 - ESA-2021-31 Note - We will update this announceme…

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Log4j Vulnerability Elasticsearch 7.8.0

Elastic Stack Elasticsearch

mikewillis (Mike Willis) May 10, 2023, 8:48am 2

Search for "Elasticsearch announcement (ESA-2021-31)". There's information about how to mitigate by setting -Dlog4j2.formatMsgNoLookups=true

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