An issue has been identified with how OpenSearch handled incoming requests on the HTTP layer. An unauthenticated user could force an OpenSearch node to exit with an OutOfMemory error by sending a moderate number of malformed HTTP requests.
The issue was identified by Elastic Engineering and corresponds to security advisory ESA-2023-13 (CVE-2023-31418).
Versions 1.3.14 and 2.11.0 contain a fix for this issue.
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. Please do not create a public GitHub issue.
{
"severity": "HIGH",
"github_reviewed": true,
"cwe_ids": [
"CWE-400"
],
"nvd_published_at": null,
"github_reviewed_at": "2023-10-17T14:24:48Z"
}