Amazon Opensearch Data Prepper vulnerabilities

3 CVEs affecting Amazon Opensearch Data Prepper, 1 known to be exploited (CISA KEV), with EPSS scores. Latest: CVE-2025-62371, published 2025-10-15.

Highest priority

Known exploited (CISA KEV) first, then by EPSS exploit probability.

CVE-2023-44487: HTTP/2 Rapid Reset Attack Vulnerability, published 2023-10-10. High severity, CVSS 7.5. Actively exploited: in CISA KEV since 2023-10-10. EPSS: 100% chance of exploitation in the next 30 days. The HTTP/2 protocol allows a denial of service (server resource consumption) because request cancellation can reset many streams quickly, as exploited in the wild in August through October 2023.
CVE-2024-55886, published 2024-12-12. Medium severity, CVSS 6.9. EPSS: 0.3% chance of exploitation in the next 30 days. OpenSearch Data Prepper is a component of the OpenSearch project that accepts, filters, transforms, enriches, and routes data at scale. A vulnerability exists in the OpenTelemetry Logs source in Data…
CVE-2025-62371, published 2025-10-15. High severity, CVSS 7.4. EPSS: 0.2% chance of exploitation in the next 30 days. OpenSearch Data Prepper as an open source data collector for observability data. In versions prior to 2.12.2, the OpenSearch sink and source plugins in Data Prepper trust all SSL certificates by…