opensearch-project data-prepper up to 2.12.1 certificate validation

Summaryinfo

A vulnerability was found in opensearch-project data-prepper up to 2.12.1. It has been declared as critical. This affects an unknown part. Executing a manipulation can lead to certificate validation. This vulnerability is handled as CVE-2025-62371. The attack can be executed remotely. There is not any exploit available. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability classified as critical was found in opensearch-project data-prepper up to 2.12.1. This vulnerability affects some unknown processing. The manipulation with an unknown input leads to a certificate validation vulnerability. The CWE definition for the vulnerability is CWE-295. The product does not validate, or incorrectly validates, a certificate. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

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.

The advisory is available at github.com. This vulnerability was named CVE-2025-62371 since 10/10/2025. The exploitation appears to be easy. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. The technical details are unknown and an exploit is not available. This vulnerability is assigned to T1587.003 by the MITRE ATT&CK project.

Upgrading to version 2.12.2 eliminates this vulnerability.

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Productinfo

Type

• Project Management Software

Vendor

• opensearch-project

Name

• data-prepper

Version

• 2.12.0
• 2.12.1

Website

• Product: https://github.com/opensearch-project/data-prepper/

CPE 2.3info

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CPE 2.2info

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