{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-117611", "assignerOrgId": "f7d6281c-4801-44ce-ace2-493291dedb0f", "state": "PUBLISHED", "assignerShortName": "Checkmk", "dateReserved": "2026-10-27T13:09:00.724Z", "datePublished": "2026-10-29T09:32:57.964Z", "dateUpdated": "2026-10-29T14:13:09.797Z"}, "containers": {"cna": {"affected": [{"defaultStatus": "unaffected", "product": "Checkmk", "vendor": "Checkmk GmbH", "versions": [{"lessThan": "2.5.0p18", "status": "affected", "version": "2.5.0", "versionType": "semver"}, {"lessThan": "2.4.0p39", "status": "affected", "version": "2.4.0", "versionType": "semver"}, {"lessThan": "2.3.0p52", "status": "affected", "version": "2.3.0", "versionType": "semver"}, {"status": "affected", "version": "2.2.0", "versionType": "semver"}]}], "descriptions": [{"lang": "en", "value": "Improper certificate validation in Checkmk <2.5.0p18, <2.4.0p39, <2.3.0p52 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."}], "impacts": [{"capecId": "CAPEC-94", "descriptions": [{"lang": "en", "value": "CAPEC-94: Adversary in the Middle"}]}], "metrics": [{"cvssV4_0": {"baseScore": 7.1, "baseSeverity": "HIGH", "vectorString": "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", "version": "4.0"}}], "problemTypes": [{"descriptions": [{"cweId": "CWE-295", "description": "CWE-295: Improper Certificate Validation", "lang": "en", "type": "CWE"}, {"cweId": "CWE-1395", "description": "CWE-1395: Dependency on Vulnerable Third-Party Component", "lang": "en", "type": "CWE"}]}], "providerMetadata": {"orgId": "f7d6281c-4801-44ce-ace2-493291dedb0f", "shortName": "Checkmk", "dateUpdated": "2026-10-29T09:32:57.964Z"}, "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"]}], "title": "Trust of compromised eMudhra root CA in bundled CA stores", "cpeApplicability": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:a:checkmk:checkmk:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.5.0", "versionEndExcluding": "2.5.0p18"}, {"vulnerable": true, "criteria": "cpe:2.3:a:checkmk:checkmk:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.4.0", "versionEndExcluding": "2.4.0p39"}, {"vulnerable": true, "criteria": "cpe:2.3:a:checkmk:checkmk:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.3.0", "versionEndExcluding": "2.3.0p52"}, {"vulnerable": true, "criteria": "cpe:2.3:a:checkmk:checkmk:2.2.0:*:*:*:*:*:*:*"}]}]}], "x_generator": {"engine": "cvelib 1.8.0"}}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2026-10-29T14:12:49.762481Z", "id": "CVE-2026-117611", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "role": "CISA Coordinator", "version": "2.0.3"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-10-29T14:13:09.797Z"}}]}}

{"dataType": "CVE_RECORD", "containers": {"adp": [{"title": "CISA ADP Vulnrichment", "metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2026-117611", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2026-10-29T14:12:49.762481Z"}}}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-10-29T14:13:03.051Z"}}], "cna": {"title": "Trust of compromised eMudhra root CA in bundled CA stores", "impacts": [{"capecId": "CAPEC-94", "descriptions": [{"lang": "en", "value": "CAPEC-94: Adversary in the Middle"}]}], "metrics": [{"cvssV4_0": {"version": "4.0", "baseScore": 7.1, "baseSeverity": "HIGH", "vectorString": "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"}}], "affected": [{"vendor": "Checkmk GmbH", "product": "Checkmk", "versions": [{"status": "affected", "version": "2.5.0", "lessThan": "2.5.0p18", "versionType": "semver"}, {"status": "affected", "version": "2.4.0", "lessThan": "2.4.0p39", "versionType": "semver"}, {"status": "affected", "version": "2.3.0", "lessThan": "2.3.0p52", "versionType": "semver"}, {"status": "affected", "version": "2.2.0", "versionType": "semver"}], "defaultStatus": "unaffected"}], "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"]}], "x_generator": {"engine": "cvelib 1.8.0"}, "descriptions": [{"lang": "en", "value": "Improper certificate validation in Checkmk <2.5.0p18, <2.4.0p39, <2.3.0p52 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."}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-295", "description": "CWE-295: Improper Certificate Validation"}, {"lang": "en", "type": "CWE", "cweId": "CWE-1395", "description": "CWE-1395: Dependency on Vulnerable Third-Party Component"}]}], "cpeApplicability": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:checkmk:checkmk:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "2.5.0p18", "versionStartIncluding": "2.5.0"}, {"criteria": "cpe:2.3:a:checkmk:checkmk:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "2.4.0p39", "versionStartIncluding": "2.4.0"}, {"criteria": "cpe:2.3:a:checkmk:checkmk:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "2.3.0p52", "versionStartIncluding": "2.3.0"}, {"criteria": "cpe:2.3:a:checkmk:checkmk:2.2.0:*:*:*:*:*:*:*", "vulnerable": true}], "operator": "OR"}]}], "providerMetadata": {"orgId": "f7d6281c-4801-44ce-ace2-493291dedb0f", "shortName": "Checkmk", "dateUpdated": "2026-10-29T09:32:57.964Z"}}}, "cveMetadata": {"cveId": "CVE-2026-117611", "state": "PUBLISHED", "dateUpdated": "2026-10-29T14:13:09.797Z", "dateReserved": "2026-10-27T13:09:00.724Z", "assignerOrgId": "f7d6281c-4801-44ce-ace2-493291dedb0f", "datePublished": "2026-10-29T09:32:57.964Z", "assignerShortName": "Checkmk"}, "dataVersion": "5.2"}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Checkmk", "vendor": "Checkmk GmbH", "versions": [{"lessThan": "2.5.0p18", "status": "affected", "version": "2.5.0", "versionType": "semver"}, {"lessThan": "2.4.0p39", "status": "affected", "version": "2.4.0", "versionType": "semver"}, {"lessThan": "2.3.0p52", "status": "affected", "version": "2.3.0", "versionType": "semver"}, {"status": "affected", "version": "2.2.0", "versionType": "semver"}]}], "source": "security@checkmk.com"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "Improper certificate validation in Checkmk <2.5.0p18, <2.4.0p39, <2.3.0p52 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."}], "id": "CVE-2026-117611", "lastModified": "2026-10-29T15:17:20.567", "metrics": {"cvssMetricV40": [{"cvssData": {"Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "Safety": "NOT_DEFINED", "attackComplexity": "LOW", "attackRequirements": "PRESENT", "attackVector": "NETWORK", "availabilityRequirement": "NOT_DEFINED", "baseScore": 7.1, "baseSeverity": "HIGH", "confidentialityRequirement": "NOT_DEFINED", "exploitMaturity": "NOT_DEFINED", "integrityRequirement": "NOT_DEFINED", "modifiedAttackComplexity": "NOT_DEFINED", "modifiedAttackRequirements": "NOT_DEFINED", "modifiedAttackVector": "NOT_DEFINED", "modifiedPrivilegesRequired": "NOT_DEFINED", "modifiedSubAvailabilityImpact": "NOT_DEFINED", "modifiedSubConfidentialityImpact": "NOT_DEFINED", "modifiedSubIntegrityImpact": "NOT_DEFINED", "modifiedUserInteraction": "NOT_DEFINED", "modifiedVulnAvailabilityImpact": "NOT_DEFINED", "modifiedVulnConfidentialityImpact": "NOT_DEFINED", "modifiedVulnIntegrityImpact": "NOT_DEFINED", "privilegesRequired": "NONE", "providerUrgency": "NOT_DEFINED", "subAvailabilityImpact": "HIGH", "subConfidentialityImpact": "HIGH", "subIntegrityImpact": "HIGH", "userInteraction": "NONE", "valueDensity": "NOT_DEFINED", "vectorString": "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", "version": "4.0", "vulnAvailabilityImpact": "NONE", "vulnConfidentialityImpact": "LOW", "vulnIntegrityImpact": "LOW", "vulnerabilityResponseEffort": "NOT_DEFINED"}, "source": "security@checkmk.com", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-117611", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2026-10-29T14:12:49.762481Z", "version": "2.0.3"}}]}, "published": "2026-10-29T10:17:03.730", "references": [{"source": "security@checkmk.com", "url": "https://checkmk.com/werk/22169"}, {"source": "security@checkmk.com", "url": "https://checkmk.com/werk/22623"}, {"source": "security@checkmk.com", "url": "https://github.com/advisories/GHSA-6q48-6c7w-9gw2"}], "sourceIdentifier": "security@checkmk.com", "vulnStatus": "Deferred", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-295"}], "source": "security@checkmk.com", "type": "Secondary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[2.5.0,2.5.0p18)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[2.4.0,2.4.0p39)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[2.3.0,2.3.0p52)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "2.2.0"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "Checkmk", "source": "cna", "vendor": "Checkmk GmbH"}, "product": "checkmk", "vendor": "checkmk"}], "created": "2026-10-29T11:00:16.543523+00:00", "updated": "2026-10-29T13:45:17.268949+00:00", "vendors": ["checkmk", "checkmk$PRODUCT$checkmk"]}