CVE-2026-18952

Description

Missing input validation in the threat intelligence feed parser in the OpenSearch Security Analytics plugin might allow an authenticated remote user to perform server-side request forgery and read local files via a crafted URL parameter to the threat intel source configuration endpoint.

CVSS Vector

References

• https://aws.amazon.com/security/security-bulletins/2026-079-aws/
• https://docs.aws.amazon.com/opensearch-service/latest/developerguide/service-software.html