OpenSearch StackOverflow vulnerability

Medium6.5Published Dec 1, 2023 · updated Dec 6, 2024

### Impact A flaw was discovered in OpenSearch, affecting the `_search` API that allowed a specially crafted query string to cause a Stack Overflow and ultimately a Denial of Service. The issue was identified by Elastic Engineering and corresponds to security advisory [ESA-2023-14](https://discuss.elastic.co/t/elasticsearch-8-9-1-7-17-13-security-update/343297) (CVE-2023-31419). ### Mitigation Versions 1.3.14 and 2.11.1 contain a fix for this issue. ### For more information If you have any questions or comments about this advisory, please contact AWS/Amazon Security via our issue reporting page (https://aws.amazon.com/security/vulnerability-reporting/) or directly via email to [aws-security@amazon.com](mailto:aws-security@amazon.com). Please do not create a public GitHub issue.