{"api_version":"1","generated_at":"2026-10-09T07:47:30+00:00","cve":"CVE-2026-105331","urls":{"html":"https://cve.report/CVE-2026-105331","api":"https://cve.report/api/cve/CVE-2026-105331.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-105331","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-105331"},"summary":{"title":"mk-oracle: Local privilege escalation via malicious Oracle Instant Client","description":"Local privilege escalation in Checkmk 2.5.0 before 2.5.0p10 allows a user with access to edit the Oracle Instant Client referenced by the agent plugin 'mk-oracle' to escalate their privileges if an agent has this plugin enabled.","state":"PUBLISHED","assigner":"Checkmk","published_at":"2026-10-08 15:17:32","updated_at":"2026-10-09 04:18:04"},"problem_types":["CWE-426","CWE-829","CWE-426 CWE-426: Untrusted Search Path","CWE-829 CWE-829: Inclusion of Functionality from Untrusted Control Sphere"],"metrics":[{"version":"4.0","source":"security@checkmk.com","type":"Secondary","score":"5.2","severity":"MEDIUM","vector":"CVSS:4.0/AV:L/AC:H/AT:P/PR:L/UI:N/VC:N/VI:N/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","data":{"version":"4.0","vectorString":"CVSS:4.0/AV:L/AC:H/AT:P/PR:L/UI:N/VC:N/VI:N/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","baseScore":5.2,"baseSeverity":"MEDIUM","attackVector":"LOCAL","attackComplexity":"HIGH","attackRequirements":"PRESENT","privilegesRequired":"LOW","userInteraction":"NONE","vulnConfidentialityImpact":"NONE","vulnIntegrityImpact":"NONE","vulnAvailabilityImpact":"NONE","subConfidentialityImpact":"HIGH","subIntegrityImpact":"HIGH","subAvailabilityImpact":"HIGH","exploitMaturity":"NOT_DEFINED","confidentialityRequirement":"NOT_DEFINED","integrityRequirement":"NOT_DEFINED","availabilityRequirement":"NOT_DEFINED","modifiedAttackVector":"NOT_DEFINED","modifiedAttackComplexity":"NOT_DEFINED","modifiedAttackRequirements":"NOT_DEFINED","modifiedPrivilegesRequired":"NOT_DEFINED","modifiedUserInteraction":"NOT_DEFINED","modifiedVulnConfidentialityImpact":"NOT_DEFINED","modifiedVulnIntegrityImpact":"NOT_DEFINED","modifiedVulnAvailabilityImpact":"NOT_DEFINED","modifiedSubConfidentialityImpact":"NOT_DEFINED","modifiedSubIntegrityImpact":"NOT_DEFINED","modifiedSubAvailabilityImpact":"NOT_DEFINED","Safety":"NOT_DEFINED","Automatable":"NOT_DEFINED","Recovery":"NOT_DEFINED","valueDensity":"NOT_DEFINED","vulnerabilityResponseEffort":"NOT_DEFINED","providerUrgency":"NOT_DEFINED"}},{"version":"4.0","source":"CNA","type":"DECLARED","score":"5.2","severity":"MEDIUM","vector":"CVSS:4.0/AV:L/AC:H/AT:P/PR:L/UI:N/VC:N/VI:N/VA:N/SC:H/SI:H/SA:H","data":{"baseScore":5.2,"baseSeverity":"MEDIUM","vectorString":"CVSS:4.0/AV:L/AC:H/AT:P/PR:L/UI:N/VC:N/VI:N/VA:N/SC:H/SI:H/SA:H","version":"4.0"}}],"references":[{"url":"https://checkmk.com/werk/22619","name":"https://checkmk.com/werk/22619","refsource":"security@checkmk.com","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-105331","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-105331","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Checkmk GmbH","product":"Checkmk","version":"affected 2.5.0 2.5.0p10 semver","platforms":[]}],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[],"vendor_comments":[],"enrichments":{"kev":null,"epss":null,"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"adp":[{"metrics":[{"other":{"content":{"id":"CVE-2026-105331","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"total"}],"role":"CISA Coordinator","timestamp":"2026-10-08T00:00:00+00:00","version":"2.0.3"},"type":"ssvc"}}],"providerMetadata":{"dateUpdated":"2026-10-09T03:55:47.530Z","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP"},"title":"CISA ADP Vulnrichment"}],"cna":{"affected":[{"defaultStatus":"unaffected","product":"Checkmk","vendor":"Checkmk GmbH","versions":[{"lessThan":"2.5.0p10","status":"affected","version":"2.5.0","versionType":"semver"}]}],"cpeApplicability":[{"nodes":[{"cpeMatch":[{"criteria":"cpe:2.3:a:checkmk:checkmk:*:*:*:*:*:*:*:*","versionEndExcluding":"2.5.0p10","versionStartIncluding":"2.5.0b1","vulnerable":true}],"negate":false,"operator":"OR"}]}],"descriptions":[{"lang":"en","value":"Local privilege escalation in Checkmk 2.5.0 before 2.5.0p10 allows a user with access to edit the Oracle Instant Client referenced by the agent plugin 'mk-oracle' to escalate their privileges if an agent has this plugin enabled."}],"impacts":[{"capecId":"CAPEC-471","descriptions":[{"lang":"en","value":"CAPEC-471: Search Order Hijacking"}]},{"capecId":"CAPEC-17","descriptions":[{"lang":"en","value":"CAPEC-17: Accessing, Modifying or Executing Executable Files"}]}],"metrics":[{"cvssV4_0":{"baseScore":5.2,"baseSeverity":"MEDIUM","vectorString":"CVSS:4.0/AV:L/AC:H/AT:P/PR:L/UI:N/VC:N/VI:N/VA:N/SC:H/SI:H/SA:H","version":"4.0"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-426","description":"CWE-426: Untrusted Search Path","lang":"en","type":"CWE"}]},{"descriptions":[{"cweId":"CWE-829","description":"CWE-829: Inclusion of Functionality from Untrusted Control Sphere","lang":"en","type":"CWE"}]}],"providerMetadata":{"dateUpdated":"2026-10-08T14:19:41.627Z","orgId":"f7d6281c-4801-44ce-ace2-493291dedb0f","shortName":"Checkmk"},"references":[{"tags":["vendor-advisory"],"url":"https://checkmk.com/werk/22619"}],"title":"mk-oracle: Local privilege escalation via malicious Oracle Instant Client","x_generator":{"engine":"cvelib 1.8.0"}}},"cveMetadata":{"assignerOrgId":"f7d6281c-4801-44ce-ace2-493291dedb0f","assignerShortName":"Checkmk","cveId":"CVE-2026-105331","datePublished":"2026-10-08T14:19:41.627Z","dateReserved":"2026-10-05T10:00:29.454Z","dateUpdated":"2026-10-09T03:55:47.530Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-10-08 15:17:32","lastModifiedDate":"2026-10-09 04:18:04","problem_types":["CWE-426","CWE-829","CWE-426 CWE-426: Untrusted Search Path","CWE-829 CWE-829: Inclusion of Functionality from Untrusted Control Sphere"],"metrics":{"cvssMetricV40":[{"source":"security@checkmk.com","type":"Secondary","cvssData":{"version":"4.0","vectorString":"CVSS:4.0/AV:L/AC:H/AT:P/PR:L/UI:N/VC:N/VI:N/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","baseScore":5.2,"baseSeverity":"MEDIUM","attackVector":"LOCAL","attackComplexity":"HIGH","attackRequirements":"PRESENT","privilegesRequired":"LOW","userInteraction":"NONE","vulnConfidentialityImpact":"NONE","vulnIntegrityImpact":"NONE","vulnAvailabilityImpact":"NONE","subConfidentialityImpact":"HIGH","subIntegrityImpact":"HIGH","subAvailabilityImpact":"HIGH","exploitMaturity":"NOT_DEFINED","confidentialityRequirement":"NOT_DEFINED","integrityRequirement":"NOT_DEFINED","availabilityRequirement":"NOT_DEFINED","modifiedAttackVector":"NOT_DEFINED","modifiedAttackComplexity":"NOT_DEFINED","modifiedAttackRequirements":"NOT_DEFINED","modifiedPrivilegesRequired":"NOT_DEFINED","modifiedUserInteraction":"NOT_DEFINED","modifiedVulnConfidentialityImpact":"NOT_DEFINED","modifiedVulnIntegrityImpact":"NOT_DEFINED","modifiedVulnAvailabilityImpact":"NOT_DEFINED","modifiedSubConfidentialityImpact":"NOT_DEFINED","modifiedSubIntegrityImpact":"NOT_DEFINED","modifiedSubAvailabilityImpact":"NOT_DEFINED","Safety":"NOT_DEFINED","Automatable":"NOT_DEFINED","Recovery":"NOT_DEFINED","valueDensity":"NOT_DEFINED","vulnerabilityResponseEffort":"NOT_DEFINED","providerUrgency":"NOT_DEFINED"}}],"ssvcV203":[{"source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","ssvcData":{"timestamp":"2026-10-08T00:00:00+00:00","id":"CVE-2026-105331","options":[{"exploitation":"none"},{"automatable":"no"},{"technicalImpact":"total"}],"role":"CISA Coordinator","version":"2.0.3"}}]},"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"105331","Ordinal":"1","Title":"mk-oracle: Local privilege escalation via malicious Oracle Insta","CVE":"CVE-2026-105331","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"105331","Ordinal":"1","NoteData":"Local privilege escalation in Checkmk 2.5.0 before 2.5.0p10 allows a user with access to edit the Oracle Instant Client referenced by the agent plugin 'mk-oracle' to escalate their privileges if an agent has this plugin enabled.","Type":"Description","Title":"mk-oracle: Local privilege escalation via malicious Oracle Insta"}]}}}