7.4

CVE-2025-62371: amazon opensearch_data_prepper Improper Certificate Validation

CVSS: 7.4v3.1HighAnalyzed
AliasesGHSA-43ff-rr26-8hx4
Published 15-10-2025Last modified 15-10-2025
Open JSON

Vulnerability summary

CVE-2025-62371 is a high (CVSS 7.4) Improper Certificate Validation vulnerability in amazon opensearch_data_prepper. EPSS estimates a 0.19% chance of exploitation in the next 30 days, higher than 8.6% of scored vulnerabilities.

Overall risk
30/100
0100
Medium · default modelHow is this calculated?
CVSS score
7.4/10
010
High · v3.1 (CVE.org)
EPSS score
0.19%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 15-10-2025
    PublishedVulnerability first disclosed.
  2. 15-10-2025
    Last modifiedVulnerability information updated.

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.

CVSS metrics

3 scores · 3 sources · 1 version

EPSS trend

Probability

0.19%

Chance of exploitation in the next 30 days

Percentile

9%

Versus all other CVEs

30-day change

0.00 pp

From 0.19% on 19-09-2026

19-09-202619-10-2026
EPSS score
0.19%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Amazon1 product
Opensearch-project1 product
Org.opensearch.dataprepper.plugins1 product
  • opensearch< 2.12.2

3 vendors · 3 products

References

6 links