{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-108121","assignerOrgId":"455daabc-a392-441d-aa46-37d35189897c","state":"PUBLISHED","assignerShortName":"NCSC.ch","dateReserved":"2026-10-09T14:16:12.766Z","datePublished":"2026-10-19T05:07:58.680Z","dateUpdated":"2026-10-19T17:36:10.887Z"},"containers":{"cna":{"providerMetadata":{"orgId":"455daabc-a392-441d-aa46-37d35189897c","shortName":"NCSC.ch","dateUpdated":"2026-10-19T05:13:04.459Z"},"title":"Koozali - SME Server Improper Input Validation in domain Creation Leads to Denial of Service","problemTypes":[{"descriptions":[{"lang":"en","cweId":"CWE-20","description":"CWE-20 Improper input validation","type":"CWE"}]},{"descriptions":[{"lang":"en","cweId":"CWE-96","description":"CWE-96 Improper neutralization of directives in statically saved code ('static code injection')","type":"CWE"}]},{"descriptions":[{"lang":"en","cweId":"CWE-400","description":"CWE-400 — Uncontrolled Resource Consumption","type":"CWE"}]}],"impacts":[{"capecId":"CAPEC-242","descriptions":[{"lang":"en","value":"CAPEC-242 Code Injection"}]}],"affected":[{"vendor":"Koozali","product":"SME Server","platforms":["Linux"],"versions":[{"status":"affected","version":"11.0rc1-215"}],"defaultStatus":"unaffected"}],"descriptions":[{"lang":"en","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.","supportingMedia":[{"type":"text/html","base64":false,"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."}]}],"references":[{"url":"https://digitalcanion.com/en/security-research/#vendor=koozali"}],"metrics":[{"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}],"cvssV4_0":{"attackVector":"NETWORK","attackComplexity":"LOW","attackRequirements":"NONE","privilegesRequired":"HIGH","userInteraction":"PASSIVE","vulnConfidentialityImpact":"NONE","subConfidentialityImpact":"NONE","vulnIntegrityImpact":"LOW","subIntegrityImpact":"LOW","vulnAvailabilityImpact":"HIGH","subAvailabilityImpact":"HIGH","exploitMaturity":"PROOF_OF_CONCEPT","Safety":"PRESENT","Automatable":"YES","Recovery":"AUTOMATIC","valueDensity":"NOT_DEFINED","vulnerabilityResponseEffort":"MODERATE","providerUrgency":"AMBER","version":"4.0","baseSeverity":"MEDIUM","baseScore":6.9,"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"}}],"credits":[{"lang":"en","value":"Brian Mariani from DigitalCanion SA","type":"finder"}],"source":{"discovery":"EXTERNAL"},"x_generator":{"engine":"Vulnogram 1.0.5"}},"adp":[{"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-10-19T17:35:53.792314Z","id":"CVE-2026-108121","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":"2026-10-19T17:36:10.887Z"}}]}}