{"api_version":"1","generated_at":"2026-10-19T21:56:53+00:00","cve":"CVE-2026-108121","urls":{"html":"https://cve.report/CVE-2026-108121","api":"https://cve.report/api/cve/CVE-2026-108121.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-108121","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-108121"},"summary":{"title":"Koozali - SME Server Improper Input Validation in domain Creation Leads to Denial of Service","description":"Brian Mariani from DigitalCanion SA has discovered a  vulnerability in the domain creation functionality of koozali's \nSME Server version 11.0rc1-215, allowing an attacker with high privileges \nto inject reserved Apache configuration directives, corrupting \nhttpd.conf and preventing Apache from starting after a server reboot, \nresulting in a denial-of-service (DoS) condition affecting the web \nserver and its hosted virtual hosts.","state":"PUBLISHED","assigner":"NCSC.ch","published_at":"2026-10-19 06:17:22","updated_at":"2026-10-19 21:03:42"},"problem_types":["CWE-20","CWE-96","CWE-400","CWE-20 CWE-20 Improper input validation","CWE-96 CWE-96 Improper neutralization of directives in statically saved code ('static code injection')","CWE-400 CWE-400 — Uncontrolled Resource Consumption"],"metrics":[{"version":"4.0","source":"vulnerability@ncsc.ch","type":"Secondary","score":"6.9","severity":"MEDIUM","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:P/VC:N/VI:L/VA:H/SC:N/SI:L/SA:H/E:P/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:P/AU:Y/R:A/V:X/RE:M/U:Amber","data":{"version":"4.0","vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:P/VC:N/VI:L/VA:H/SC:N/SI:L/SA:H/E:P/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:P/AU:Y/R:A/V:X/RE:M/U:Amber","baseScore":6.9,"baseSeverity":"MEDIUM","attackVector":"NETWORK","attackComplexity":"LOW","attackRequirements":"NONE","privilegesRequired":"HIGH","userInteraction":"PASSIVE","vulnConfidentialityImpact":"NONE","vulnIntegrityImpact":"LOW","vulnAvailabilityImpact":"HIGH","subConfidentialityImpact":"NONE","subIntegrityImpact":"LOW","subAvailabilityImpact":"HIGH","exploitMaturity":"PROOF_OF_CONCEPT","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":"PRESENT","Automatable":"YES","Recovery":"AUTOMATIC","valueDensity":"NOT_DEFINED","vulnerabilityResponseEffort":"MODERATE","providerUrgency":"AMBER"}},{"version":"4.0","source":"CNA","type":"CVSS","score":"6.9","severity":"MEDIUM","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:P/VC:N/VI:L/VA:H/SC:N/SI:L/SA:H/E:P/S:P/AU:Y/R:A/RE:M/U:Amber","data":{"Automatable":"YES","Recovery":"AUTOMATIC","Safety":"PRESENT","attackComplexity":"LOW","attackRequirements":"NONE","attackVector":"NETWORK","baseScore":6.9,"baseSeverity":"MEDIUM","exploitMaturity":"PROOF_OF_CONCEPT","privilegesRequired":"HIGH","providerUrgency":"AMBER","subAvailabilityImpact":"HIGH","subConfidentialityImpact":"NONE","subIntegrityImpact":"LOW","userInteraction":"PASSIVE","valueDensity":"NOT_DEFINED","vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:P/VC:N/VI:L/VA:H/SC:N/SI:L/SA:H/E:P/S:P/AU:Y/R:A/RE:M/U:Amber","version":"4.0","vulnAvailabilityImpact":"HIGH","vulnConfidentialityImpact":"NONE","vulnIntegrityImpact":"LOW","vulnerabilityResponseEffort":"MODERATE"}}],"references":[{"url":"https://digitalcanion.com/en/security-research/#vendor=koozali","name":"https://digitalcanion.com/en/security-research/#vendor=koozali","refsource":"vulnerability@ncsc.ch","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-108121","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-108121","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Koozali","product":"SME Server","version":"affected 11.0rc1-215","platforms":["Linux"]}],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[{"source":"CNA","value":"Brian Mariani from DigitalCanion SA","lang":"en"}],"nvd_cpes":[],"vendor_comments":[],"enrichments":{"kev":null,"epss":null,"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"adp":[{"metrics":[{"other":{"content":{"id":"CVE-2026-108121","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","timestamp":"2026-10-19T17:35:53.792314Z","version":"2.0.3"},"type":"ssvc"}}],"providerMetadata":{"dateUpdated":"2026-10-19T17:36:10.887Z","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP"},"title":"CISA ADP Vulnrichment"}],"cna":{"affected":[{"defaultStatus":"unaffected","platforms":["Linux"],"product":"SME Server","vendor":"Koozali","versions":[{"status":"affected","version":"11.0rc1-215"}]}],"credits":[{"lang":"en","type":"finder","value":"Brian Mariani from DigitalCanion SA"}],"descriptions":[{"lang":"en","supportingMedia":[{"base64":false,"type":"text/html","value":"<span>Brian Mariani from DigitalCanion SA has discovered&nbsp;</span>a&nbsp; vulnerability in the domain creation functionality of koozali's \nSME Server version 11.0rc1-215, allowing an attacker with high privileges \nto inject reserved Apache configuration directives, corrupting \nhttpd.conf and preventing Apache from starting after a server reboot, \nresulting in a denial-of-service (DoS) condition affecting the web \nserver and its hosted virtual hosts."}],"value":"Brian Mariani from DigitalCanion SA has discovered a  vulnerability in the domain creation functionality of koozali's \nSME Server version 11.0rc1-215, allowing an attacker with high privileges \nto inject reserved Apache configuration directives, corrupting \nhttpd.conf and preventing Apache from starting after a server reboot, \nresulting in a denial-of-service (DoS) condition affecting the web \nserver and its hosted virtual hosts."}],"impacts":[{"capecId":"CAPEC-242","descriptions":[{"lang":"en","value":"CAPEC-242 Code Injection"}]}],"metrics":[{"cvssV4_0":{"Automatable":"YES","Recovery":"AUTOMATIC","Safety":"PRESENT","attackComplexity":"LOW","attackRequirements":"NONE","attackVector":"NETWORK","baseScore":6.9,"baseSeverity":"MEDIUM","exploitMaturity":"PROOF_OF_CONCEPT","privilegesRequired":"HIGH","providerUrgency":"AMBER","subAvailabilityImpact":"HIGH","subConfidentialityImpact":"NONE","subIntegrityImpact":"LOW","userInteraction":"PASSIVE","valueDensity":"NOT_DEFINED","vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:P/VC:N/VI:L/VA:H/SC:N/SI:L/SA:H/E:P/S:P/AU:Y/R:A/RE:M/U:Amber","version":"4.0","vulnAvailabilityImpact":"HIGH","vulnConfidentialityImpact":"NONE","vulnIntegrityImpact":"LOW","vulnerabilityResponseEffort":"MODERATE"},"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}]}],"problemTypes":[{"descriptions":[{"cweId":"CWE-20","description":"CWE-20 Improper input validation","lang":"en","type":"CWE"}]},{"descriptions":[{"cweId":"CWE-96","description":"CWE-96 Improper neutralization of directives in statically saved code ('static code injection')","lang":"en","type":"CWE"}]},{"descriptions":[{"cweId":"CWE-400","description":"CWE-400 — Uncontrolled Resource Consumption","lang":"en","type":"CWE"}]}],"providerMetadata":{"dateUpdated":"2026-10-19T05:13:04.459Z","orgId":"455daabc-a392-441d-aa46-37d35189897c","shortName":"NCSC.ch"},"references":[{"url":"https://digitalcanion.com/en/security-research/#vendor=koozali"}],"source":{"discovery":"EXTERNAL"},"title":"Koozali - SME Server Improper Input Validation in domain Creation Leads to Denial of Service","x_generator":{"engine":"Vulnogram 1.0.5"}}},"cveMetadata":{"assignerOrgId":"455daabc-a392-441d-aa46-37d35189897c","assignerShortName":"NCSC.ch","cveId":"CVE-2026-108121","datePublished":"2026-10-19T05:07:58.680Z","dateReserved":"2026-10-09T14:16:12.766Z","dateUpdated":"2026-10-19T17:36:10.887Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-10-19 06:17:22","lastModifiedDate":"2026-10-19 21:03:42","problem_types":["CWE-20","CWE-96","CWE-400","CWE-20 CWE-20 Improper input validation","CWE-96 CWE-96 Improper neutralization of directives in statically saved code ('static code injection')","CWE-400 CWE-400 — Uncontrolled Resource Consumption"],"metrics":{"cvssMetricV40":[{"source":"vulnerability@ncsc.ch","type":"Secondary","cvssData":{"version":"4.0","vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:P/VC:N/VI:L/VA:H/SC:N/SI:L/SA:H/E:P/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:P/AU:Y/R:A/V:X/RE:M/U:Amber","baseScore":6.9,"baseSeverity":"MEDIUM","attackVector":"NETWORK","attackComplexity":"LOW","attackRequirements":"NONE","privilegesRequired":"HIGH","userInteraction":"PASSIVE","vulnConfidentialityImpact":"NONE","vulnIntegrityImpact":"LOW","vulnAvailabilityImpact":"HIGH","subConfidentialityImpact":"NONE","subIntegrityImpact":"LOW","subAvailabilityImpact":"HIGH","exploitMaturity":"PROOF_OF_CONCEPT","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":"PRESENT","Automatable":"YES","Recovery":"AUTOMATIC","valueDensity":"NOT_DEFINED","vulnerabilityResponseEffort":"MODERATE","providerUrgency":"AMBER"}}],"ssvcV203":[{"source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","ssvcData":{"timestamp":"2026-10-19T17:35:53.792314Z","id":"CVE-2026-108121","options":[{"exploitation":"none"},{"automatable":"no"},{"technicalImpact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}]},"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"108121","Ordinal":"1","Title":"Koozali - SME Server Improper Input Validation in domain Creatio","CVE":"CVE-2026-108121","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"108121","Ordinal":"1","NoteData":"Brian Mariani from DigitalCanion SA has discovered a  vulnerability in the domain creation functionality of koozali's \nSME Server version 11.0rc1-215, allowing an attacker with high privileges \nto inject reserved Apache configuration directives, corrupting \nhttpd.conf and preventing Apache from starting after a server reboot, \nresulting in a denial-of-service (DoS) condition affecting the web \nserver and its hosted virtual hosts.","Type":"Description","Title":"Koozali - SME Server Improper Input Validation in domain Creatio"}]}}}