CVE-2025-35434

CISA Thorium does not validate TLS connections to Elasticsearch

Published Sep 17, 2025 CVSS 4.0 · 2.3 Low EPSS < 1% KEV · Not listed
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
EUVD EUVD EUVD-2025-29734 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.
History
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
CPEs cpe:2.3:a:cisa:thorium:*:*:*:*:*:*:*:*
Type Values Removed Values Added
First Time appeared Cisa
Cisa thorium
Vendors & Products Cisa
Cisa thorium
Type Values Removed Values Added
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.
Title CISA Thorium does not validate TLS connections to Elasticsearch
Weaknesses CWE-295
References
Metrics cvssV3_1

{'score': 4.2, 'vector': 'CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N'}

cvssV4_0

{'score': 2.3, 'vector': 'CVSS:4.0/AV:A/AC:H/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
cisa-cg
Published
Updated
Sep 30, 2025, 4:32 PM
Reserved
Apr 15, 2025, 8:57 PM
Status
Analyzed
Published
Sep 17, 2025, 5:15 PM
Modified
Jun 17, 2026, 9:14 AM