{"id":"CVE-2025-35434","aliases":["EUVD-2025-29734","GHSA-r8gr-36v8-m732"],"status":"published","title":"CISA Thorium does not validate TLS connections to Elasticsearch","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.","severity":{"version":"4.0","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","level":"low","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-12","score":0.00201,"percentile":0.10094,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-295"],"published":"2025-09-17T16:53:08Z","modified":"2026-10-28T02:30:37Z","products":[{"vendor":"cisa","product":"thorium"}],"references":[{"url":"https://github.com/cisagov/thorium/releases/tag/1.1.2","tags":["Release Notes","web"]},{"url":"https://github.com/cisagov/thorium/blob/main/api/src/models/backends/setup/elastic_setup.rs#L36-L43","tags":["Product","web"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2025-35434","tags":["Third Party Advisory","web"]},{"url":"https://raw.githubusercontent.com/cisagov/CSAF/develop/csaf_files/IT/white/2025/va-25-259-01.json","tags":["Vendor Advisory","web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2025-35434","tags":["advisory"]},{"url":"https://github.com/advisories/GHSA-r8gr-36v8-m732"},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/35xxx/CVE-2025-35434.json","tags":["advisory"]}],"sources":{"cve":[{"id":"CVE-2025-35434","title":"CISA Thorium does not validate TLS connections to Elasticsearch","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.","status":"published","published":"2025-09-17T16:53:08.899Z","modified":"2025-09-30T16:32:05.835Z","cvss":[{"version":"4.0","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","level":"low","assessor":"cna"},{"version":"3.1","score":4.2,"vector":"CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N","level":"medium","assessor":"cna"}],"cwes":["CWE-295"],"updated_at":"2026-11-02T14:32:51.199669Z"}],"euvd":[{"id":"EUVD-2025-29734","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.","status":"published","published":"2025-09-17T16:53:08Z","modified":"2025-09-30T16:32:05Z","cvss":[{"version":"4.0","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","level":"low"}],"updated_at":"2026-11-02T20:31:37.600422Z"}],"ghsa":[{"id":"GHSA-r8gr-36v8-m732","title":"CISA Thorium does not validate TLS certificates when connecting to Elasticsearch. An...","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.","status":"published","published":"2025-09-17T18:31:18Z","modified":"2025-09-17T18:31:24Z","cvss":[{"version":"4.0","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/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","level":"low"},{"version":"3.1","score":4.2,"vector":"CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N","level":"medium"}],"cwes":["CWE-295"],"updated_at":"2026-11-02T15:03:38.15725Z"}],"nvd":[{"id":"CVE-2025-35434","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.","status":"published","published":"2025-09-17T17:15:43.713Z","modified":"2026-06-17T09:14:17.59Z","cvss":[{"version":"4.0","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/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","level":"low","assessor":"secondary"},{"version":"3.1","score":4.2,"vector":"CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N","level":"medium","assessor":"secondary"},{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"primary"}],"cwes":["CWE-295"],"updated_at":"2026-11-02T14:11:29.650057Z"}],"osv":[{"id":"CVE-2025-35434","title":"CISA Thorium does not validate TLS connections to Elasticsearch","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.","status":"published","published":"2025-09-17T16:53:08.899Z","modified":"2026-10-28T02:30:37.493406226Z","cvss":[{"version":"4.0","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","level":"low"}],"cwes":["CWE-295"],"updated_at":"2026-11-02T15:44:48.02508Z"}]}}