{"id":"CVE-2026-117611","aliases":["EUVD-2026-112694","GHSA-q2v4-c5p2-6gr4"],"status":"published","title":"Trust of compromised eMudhra root CA in bundled CA stores","description":"Improper certificate validation in Checkmk \u003c2.5.0p18, \u003c2.4.0p39, \u003c2.3.0p52 and 2.2.0 (EOL): the Certificate Authority stores bundled with \"certifi\" and \"webpki-roots\" include a root CA that trusts eMudhra (emSign) intermediate certificates whose private keys are public.","severity":{"version":"4.0","score":7.1,"vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:L/VA:N/SC:H/SI:H/SA:H","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-12","score":0.00238,"percentile":0.14969,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-1395","CWE-295"],"published":"2026-10-29T09:32:57Z","modified":"2026-10-29T15:17:20Z","products":[{"vendor":"checkmk gmbh","product":"checkmk"}],"references":[{"url":"https://checkmk.com/werk/22623","tags":["vendor-advisory"]},{"url":"https://checkmk.com/werk/22169","tags":["vendor-advisory"]},{"url":"https://github.com/advisories/GHSA-6q48-6c7w-9gw2","tags":["third-party-advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-117611"},{"url":"https://github.com/advisories/GHSA-q2v4-c5p2-6gr4"}],"sources":{"cve":[{"id":"CVE-2026-117611","title":"Trust of compromised eMudhra root CA in bundled CA stores","description":"Improper certificate validation in Checkmk \u003c2.5.0p18, \u003c2.4.0p39, \u003c2.3.0p52 and 2.2.0 (EOL): the Certificate Authority stores bundled with \"certifi\" and \"webpki-roots\" include a root CA that trusts eMudhra (emSign) intermediate certificates whose private keys are public.","status":"published","published":"2026-10-29T09:32:57.964Z","modified":"2026-10-29T14:13:09.797Z","cvss":[{"version":"4.0","score":7.1,"vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:L/VA:N/SC:H/SI:H/SA:H","level":"high","assessor":"cna"}],"cwes":["CWE-295","CWE-1395"],"updated_at":"2026-11-02T14:20:13.272106Z"}],"euvd":[{"id":"EUVD-2026-112694","description":"Improper certificate validation in Checkmk \u003c2.5.0p18, \u003c2.4.0p39, \u003c2.3.0p52 and 2.2.0 (EOL): the Certificate Authority stores bundled with \"certifi\" and \"webpki-roots\" include a root CA that trusts eMudhra (emSign) intermediate certificates whose private keys are public.","status":"published","published":"2026-10-29T09:32:57Z","modified":"2026-10-29T14:13:09Z","cvss":[{"version":"4.0","score":7.1,"vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:L/VA:N/SC:H/SI:H/SA:H","level":"high"}],"updated_at":"2026-11-02T16:59:16.484344Z"}],"ghsa":[{"id":"GHSA-q2v4-c5p2-6gr4","title":"Improper certificate validation in Checkmk \u003c2.5.0p18, \u003c2.4.0p39, \u003c2.3.0p52 and 2.2.0 (EOL): the...","description":"Improper certificate validation in Checkmk \u003c2.5.0p18, \u003c2.4.0p39, \u003c2.3.0p52 and 2.2.0 (EOL): the Certificate Authority stores bundled with \"certifi\" and \"webpki-roots\" include a root CA that trusts eMudhra (emSign) intermediate certificates whose private keys are public.","status":"published","published":"2026-10-29T12:30:35Z","modified":"2026-10-29T12:30:45Z","cvss":[{"version":"4.0","score":7.1,"vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:L/VA:N/SC:H/SI:H/SA:H/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":"high"}],"cwes":["CWE-295"],"updated_at":"2026-11-02T15:14:38.164928Z"}],"nvd":[{"id":"CVE-2026-117611","description":"Improper certificate validation in Checkmk \u003c2.5.0p18, \u003c2.4.0p39, \u003c2.3.0p52 and 2.2.0 (EOL): the Certificate Authority stores bundled with \"certifi\" and \"webpki-roots\" include a root CA that trusts eMudhra (emSign) intermediate certificates whose private keys are public.","status":"published","published":"2026-10-29T10:17:03.73Z","modified":"2026-10-29T15:17:20.567Z","cvss":[{"version":"4.0","score":7.1,"vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:L/VA:N/SC:H/SI:H/SA:H/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":"high","assessor":"secondary"}],"cwes":["CWE-295"],"updated_at":"2026-11-02T14:13:04.6346Z"}]}}