What’s Vulnerable › Vulnerabilities

CVE-2026-44033: Uncontrolled recursion in the DCMTK bundled XML parser allows denial of service

• Severity: medium (CVSS 5.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.1% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-10-08 · updated 2026-10-08
• Weakness: CWE-674

Description

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.

Affected products

• OFFIS DCMTK: 3.7.0

References

• https://github.com/DCMTK/dcmtk/commit/d12e350e687530eb41e2b0c860aff4d8c04e5941
• https://support.dcmtk.org/redmine/issues/1214

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