CVE-2025-62371CWE-295

CVE-2025-62371

High · published October 15, 2025

CVSS v3.1
7.4
EPSS
0%
Percentile
8.7
In the wild
Unconfirmed
What it is

⚡ A trust-all SSL strategy? That's like a bank accepting every ID without checking if it's real! 🏦 Imagine a restaurant where the chef uses any ingredient brought to them without checking if it's safe — that’s what happens here! The OpenSearch Data Prepper is accepting SSL certificates without validating them, leaving your data vulnerable to unwanted cooks in the kitchen. An attacker could intercept and modify data as it flows between your OpenSearch clusters, leading to possibly devastating consequences like data breaches or unauthorized access. This could compromise the integrity of your observability data, making it unreliable or even malicious. In short, your data could be tampered with while it’s on the way, like a recipe being sabotaged before it reaches the table!

Put simply

Imagine a restaurant where the chef uses any ingredient brought to them without checking if it's safe — that’s what happens here! The OpenSearch Data Prepper is accepting SSL certificates without validating them, leaving your data vulnerable to unwanted cooks in the kitchen. This vulnerability in OpenSearch Data Prepper allows the sink and source plugins to trust all SSL certificates by default when no certificate path is provided, effectively bypassing SSL validation and facilitating man-in-the-middle attacks.

What to do

An attacker could intercept and modify data as it flows between your OpenSearch clusters, leading to possibly devastating consequences like data breaches or unauthorized access. This could compromise the integrity of your observability data, making it unreliable or even malicious. In short, your data could be tampered with while it’s on the way, like a recipe being sabotaged before it reaches the table! To secure your setup, upgrade to version 2.12.2 immediately. Also, enhance your configuration by specifying the cert parameter with the path to your cluster's CA certificate to ensure proper validation going forward. Don't wait—lock this down now! You've got this! Follow these steps, and you'll ensure your data flows safely and securely. 🛡️

The record
Technical detail
CVSS v3.1
7.4 · HIGH
Vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
CVSS v4.0
Not supplied
EPSS
0.00195 · 8.7th percentile
Weakness
CWE-295 · Improper Certificate Validation
Published
2025-10-15T22:15Z
Affected products (1)
ProductVersionsFixed in
amazon/opensearch_data_prepper< 2.12.22.12.2
References (4)
EPSS history
Timeline
  • 15 OCT 17:25Z
    OpenSearch Data Prepper plugins trusts all SSL certificates by default
    cvelistv5