CVE-2025-35434
Unknown Unknown - Not Provided
BaseFortify

Publication date: 2025-09-17

Last updated on: 2025-09-23

Assigner: Cybersecurity and Infrastructure Security Agency (CISA) U.S. Civilian Government

Description
CISA Thorium does not validate TLS certificates when connecting to Elasticsearch. An unauthenticated attacker with access to a Thorium cluster could impersonate the Elasticsearch service. Fixed in 1.1.2.
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Meta Information
Published
2025-09-17
Last Modified
2025-09-23
Generated
2026-06-24
AI Q&A
2025-09-17
EPSS Evaluated
2026-06-22
NVD
CVE-2025-35434
Affected Vendors & Products
Showing 1 associated CPE
Vendor Product Version / Range
cisa thorium to 1.1.2 (exc)
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Exploitability
CWE
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KEV
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CWE ID Description
CWE-295 The product does not validate, or incorrectly validates, a certificate.
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Executive Summary

This vulnerability occurs because CISA Thorium does not validate TLS certificates when connecting to Elasticsearch. This means an unauthenticated attacker who has access to a Thorium cluster could impersonate the Elasticsearch service, potentially misleading Thorium into communicating with a malicious server.

Impact Analysis

The vulnerability could allow an attacker to impersonate the Elasticsearch service, which may lead to interception or manipulation of data exchanged between Thorium and Elasticsearch. This could compromise the integrity and confidentiality of the data within the Thorium cluster.

Mitigation Strategies

Upgrade CISA Thorium to version 1.1.2 or later, as this version includes a fix for the TLS certificate validation issue when connecting to Elasticsearch.

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