CVE-2023-31418: Elasticsearch vulnerable to Uncontrolled Resource Consumption

October 26, 2023 (updated October 30, 2023)

An issue has been identified with how Elasticsearch handled incoming requests on the HTTP layer. An unauthenticated user could force an Elasticsearch node to exit with an OutOfMemory error by sending a moderate number of malformed HTTP requests. The issue was identified by Elastic Engineering and we have no indication that the issue is known or that it is being exploited in the wild.

References

discuss.elastic.co/t/elasticsearch-8-9-0-7-17-13-security-update/343616
github.com/advisories/GHSA-2cqf-6xv9-f22w
nvd.nist.gov/vuln/detail/CVE-2023-31418
www.elastic.co/community/security

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