CVE-2025-62371

High

Description

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 default when no certificate path is provided. Prior to this fix, the OpenSearch sink and source plugins would automatically use a trust all SSL strategy when connecting to OpenSearch clusters if no certificate path was explicitly configured. This behavior bypasses SSL certificate validation, potentially allowing attackers to intercept and modify data in transit through man-in-the-middle attacks. The vulnerability affects connections to OpenSearch when the cert parameter is not explicitly provided. This issue has been patched in version 2.12.2. As a workaround, users can add the cert parameter to their OpenSearch sink or source configuration with the path to the cluster's CA certificate.

SeverityHigh
CVSS7.4
Exploit probability—
ProductAmazon Opensearch Data Prepper
PublishedOct 15, 2025
First seenOct 15, 2025
Weakness typeCWE-295CWE-295

How to fix

Update
  • amazon opensearch_data_prepper2.12.2 or later
  • org.opensearch.dataprepper.plugins:opensearch2.12.2 or later

Affected products

ProductAffected versionsFixed in
amazon opensearch_data_prepperv < 2.12.22.12.2
org.opensearch.dataprepper.plugins:opensearchMavenv < 2.12.22.12.2

Check your version

Choose the product and enter the version you run to see whether it falls in the affected range.

In the Intelligence 360 plan

Attack Surface Management

See the assets tied to your domains, the technologies they run and known vulnerabilities in one list.