by Kastro
Paper/Archive/CVE-2025-35434

CVE-2025-35434

CISA Thorium — CISA Thorium does not validate TLS connections to Elasticsearch

EPSS 0.2%public exploitCVSS 9.8
critical.is priorityof 100
41
CVSS 9.8 (NVD)9.8 / 10 × 3029.4Not in CISA KEV+300.0EPSS percentile 10.0.100 × 202.0Exploit: SSVC poc+1010.0SSVC exploitation: poc+100.0
Description · from the CVE record

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.

Affected

ProductAffectedFixed inSource
Thorium1.0.0 – < 1.1.21.1.2CNA

Scores by source

NVD9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
cisa-cg (CNA)4.2CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N
cisa-cg (CNA)2.3CVSS:4.0/AV:A/AC:H/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N
CISA ADPSSVCExploitation: poc · Automatable: no · Technical impact: partial

References

refgithub.com/cisagov/thorium/releases/tag/1.1.2refgithub.com/cisagov/thorium/blob/main/api/src/models/backends/setup/elastic_setup.rs#L36-L43refcve.org/CVERecord?id=CVE-2025-35434refraw.githubusercontent.com/cisagov/CSAF/develop/csaf_files/IT/white/2025/va-25-259-01.json