CVE-2026-108121

Brian Mariani from DigitalCanion SA has discovered a vulnerability in the domain creation functionality of koozali's SME Server version 11.0rc1-215, allowing an attacker with high privileges to inject reserved Apache configuration directives, corrupting httpd.conf and preventing Apache from starting after a server reboot, resulting in a denial-of-service (DoS) condition affecting the web server and its hosted virtual hosts.

CVSS

No CVSS.

References

Link	Resource
https://digitalcanion.com/en/security-research/#vendor=koozali

Configurations

No configuration.

History

19 Oct 2026, 06:17

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-10-19 06:17

Updated : 2026-10-19 21:03

NVD link : CVE-2026-108121

Mitre link : CVE-2026-108121

CVE.ORG link : CVE-2026-108121

JSON object : View

Products Affected

No product.

CWE

CWE-20

Improper Input Validation

CWE-96

Improper Neutralization of Directives in Statically Saved Code ('Static Code Injection')

CWE-400

Uncontrolled Resource Consumption

{"id": "CVE-2026-108121", "cveTags": [], "metrics": {"ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-108121", "role": "CISA Coordinator", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "version": "2.0.3", "timestamp": "2026-10-19T17:35:53.792314Z"}}], "cvssMetricV40": [{"type": "Secondary", "source": "vulnerability@ncsc.ch", "cvssData": {"Safety": "PRESENT", "version": "4.0", "Recovery": "AUTOMATIC", "baseScore": 6.9, "Automatable": "YES", "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "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/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", "exploitMaturity": "PROOF_OF_CONCEPT", "providerUrgency": "AMBER", "userInteraction": "PASSIVE", "attackComplexity": "LOW", "attackRequirements": "NONE", "privilegesRequired": "HIGH", "subIntegrityImpact": "LOW", "vulnIntegrityImpact": "LOW", "integrityRequirement": "NOT_DEFINED", "modifiedAttackVector": "NOT_DEFINED", "subAvailabilityImpact": "HIGH", "vulnAvailabilityImpact": "HIGH", "availabilityRequirement": "NOT_DEFINED", "modifiedUserInteraction": "NOT_DEFINED", "modifiedAttackComplexity": "NOT_DEFINED", "subConfidentialityImpact": "NONE", "vulnConfidentialityImpact": "NONE", "confidentialityRequirement": "NOT_DEFINED", "modifiedAttackRequirements": "NOT_DEFINED", "modifiedPrivilegesRequired": "NOT_DEFINED", "modifiedSubIntegrityImpact": "NOT_DEFINED", "modifiedVulnIntegrityImpact": "NOT_DEFINED", "vulnerabilityResponseEffort": "MODERATE", "modifiedSubAvailabilityImpact": "NOT_DEFINED", "modifiedVulnAvailabilityImpact": "NOT_DEFINED", "modifiedSubConfidentialityImpact": "NOT_DEFINED", "modifiedVulnConfidentialityImpact": "NOT_DEFINED"}}]}, "affected": [{"source": "vulnerability@ncsc.ch", "affectedData": [{"vendor": "Koozali", "product": "SME Server", "versions": [{"status": "affected", "version": "11.0rc1-215"}], "platforms": ["Linux"], "defaultStatus": "unaffected"}]}], "published": "2026-10-19T06:17:22.163", "references": [{"url": "https://digitalcanion.com/en/security-research/#vendor=koozali", "source": "vulnerability@ncsc.ch"}], "vulnStatus": "Deferred", "weaknesses": [{"type": "Secondary", "source": "vulnerability@ncsc.ch", "description": [{"lang": "en", "value": "CWE-20"}, {"lang": "en", "value": "CWE-96"}, {"lang": "en", "value": "CWE-400"}]}], "descriptions": [{"lang": "en", "value": "Brian Mariani from DigitalCanion SA has discovered\u00a0a\u00a0 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."}], "lastModified": "2026-10-19T21:03:42.880", "sourceIdentifier": "vulnerability@ncsc.ch"}