CVE-2026-44033

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{"affected": [{"affectedData": [{"collectionURL": "https://github.com/DCMTK/dcmtk", "cpes": ["cpe:2.3:a:offis:dcmtk:3.7.0:*:*:*:*:*:*:*"], "defaultStatus": "unknown", "modules": ["ofstd"], "product": "DCMTK", "programFiles": ["ofstd/libsrc/ofxml.cc"], "repo": "https://github.com/DCMTK/dcmtk", "vendor": "OFFIS", "versions": [{"status": "affected", "version": "3.7.0"}]}], "source": "33c584b5-0579-4c06-b2a0-8d8329fcab9c"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "Uncontrolled recursion in XMLNode::ParseXMLElement() and XMLNode::emptyTheNode() in the bundled XML parser (ofstd/libsrc/ofxml.cc) of OFFIS DCMTK 3.7.0 allows an attacker to cause a denial of service (stack exhaustion and process crash) via a crafted XML document with deeply nested elements. The parser is reachable through dcmencap when encapsulating a CDA document, and through any application that calls OFXMLParser::parseFile() or OFXMLParser::parseString() on untrusted input. The issue is fixed in commit d12e350e687530eb41e2b0c860aff4d8c04e5941."}], "id": "CVE-2026-44033", "lastModified": "2026-10-08T21:10:00.133", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 5.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 3.6, "source": "33c584b5-0579-4c06-b2a0-8d8329fcab9c", "type": "Secondary"}], "cvssMetricV40": [{"cvssData": {"Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "Safety": "NOT_DEFINED", "attackComplexity": "LOW", "attackRequirements": "NONE", "attackVector": "LOCAL", "availabilityRequirement": "NOT_DEFINED", "baseScore": 6.8, "baseSeverity": "MEDIUM", "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": "NONE", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "userInteraction": "PASSIVE", "valueDensity": "NOT_DEFINED", "vectorString": "CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/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": "HIGH", "vulnConfidentialityImpact": "NONE", "vulnIntegrityImpact": "NONE", "vulnerabilityResponseEffort": "NOT_DEFINED"}, "source": "33c584b5-0579-4c06-b2a0-8d8329fcab9c", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-44033", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2026-10-08T14:10:03.806437Z", "version": "2.0.3"}}]}, "published": "2026-10-08T13:17:17.197", "references": [{"source": "33c584b5-0579-4c06-b2a0-8d8329fcab9c", "url": "https://github.com/DCMTK/dcmtk/commit/d12e350e687530eb41e2b0c860aff4d8c04e5941"}, {"source": "33c584b5-0579-4c06-b2a0-8d8329fcab9c", "url": "https://support.dcmtk.org/redmine/issues/1214"}], "sourceIdentifier": "33c584b5-0579-4c06-b2a0-8d8329fcab9c", "vulnStatus": "Awaiting Analysis", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-674"}], "source": "33c584b5-0579-4c06-b2a0-8d8329fcab9c", "type": "Secondary"}]}

{"bugzilla": {"description": "dcmtk: dcmtk: Denial of Service via deeply nested XML elements", "id": "2547945", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2547945"}, "csaw": false, "cvss3": {"cvss3_base_score": "5.5", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H", "status": "draft"}, "cwe": "CWE-770", "details": ["A flaw was found in dcmtk. An attacker can trigger uncontrolled recursion by tricking a user or application into parsing a specially crafted XML document containing deeply nested elements. This flaw leads to stack exhaustion, causing the application to crash and resulting in a Denial of Service (DoS)."], "name": "CVE-2026-44033", "public_date": "2026-10-08T12:55:08Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-44033\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-44033\nhttps://github.com/DCMTK/dcmtk/commit/d12e350e687530eb41e2b0c860aff4d8c04e5941\nhttps://support.dcmtk.org/redmine/issues/1214"], "statement": "This vulnerability is rated as Moderate severity because exploitation requires an attacker to convince a user or automated process to handle a specially crafted XML file, resulting only in a denial of service without compromising data confidentiality or system integrity. In Red Hat environments, DCMTK is not included in supported Red Hat Enterprise Linux releases and is only available through community repositories such as EPEL. Furthermore, exposure is limited to environments where DICOM applications or utilities explicitly process untrusted external XML documents.", "threat_severity": "Moderate"}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "3.7.0"}}], "enrichment": {"confidence": 95.0, "confidence_source": "inferred", "scores": [{"score": 95.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "DCMTK", "source": "cna", "vendor": "OFFIS"}, "product": "dcmtk", "vendor": "offis"}], "created": "2026-10-08T14:30:18.414938+00:00", "updated": "2026-10-09T01:45:08.716528+00:00", "vendors": ["offis", "offis$PRODUCT$dcmtk"], "weaknesses": ["CWE-674", "CWE-770"]}