CVE-2025-35434

CISA Thorium does not validate TLS connections to Elasticsearch

2.3 Low

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.

Attack profile

How easy it is to exploit

Attack vector: Adjacent network
Complexity: High
Privileges needed: None
User interaction: None

What an attacker can affect

Confidentiality: Low
Integrity: Low
Availability: None

Exploit likelihood

0.20%Up 0.2 points since Sep 18, 2025

What each source reports

CVE List Score used 2.3

CISA Thorium does not validate TLS connections to Elasticsearch

Record: CVE-2025-35434
CVSS 4.0: 2.3 LowCVSS:4.0/AV:A/AC:H/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N
CVSS 3.1: 4.2 MediumCVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N
Weakness: CWE-295
Updated: 2026-11-02

EUVDEUVD-2025-29734 2.3

Record: EUVD-2025-29734
CVSS 4.0: 2.3 LowCVSS:4.0/AV:A/AC:H/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N
Updated: 2026-11-02

GitHub AdvisoriesGHSA-r8gr-36v8-m732 2.3

CISA Thorium does not validate TLS certificates when connecting to Elasticsearch. An...

Record: GHSA-r8gr-36v8-m732
CVSS 4.0: 2.3 LowCVSS:4.0/AV:A/AC:H/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
CVSS 3.1: 4.2 MediumCVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N
Weakness: CWE-295
Updated: 2026-11-02

NVD 2.3

Record: CVE-2025-35434
CVSS 4.0: 2.3 LowCVSS:4.0/AV:A/AC:H/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
CVSS 3.1: 4.2 MediumCVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N
CVSS 3.1: 9.8 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness: CWE-295
Updated: 2026-11-02

OSV 2.3

CISA Thorium does not validate TLS connections to Elasticsearch

Record: CVE-2025-35434
CVSS 4.0: 2.3 LowCVSS:4.0/AV:A/AC:H/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N
Weakness: CWE-295
Updated: 2026-11-02

Affected products

cisa thorium

History

History
Recorded	Changed	Sources
Nov 2, 2026	first indexed	CVE List, EUVD, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2025-35434 is a low vulnerability (CVSS 2.3) in Cisa Thorium, published September 17, 2025. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.20%, the 10th percentile. No source names a fixed version.