Bug 2491215 (CVE-2026-12805)

Summary: CVE-2026-12805 dcmtk: OFFIS DCMTK: Heap-based buffer overflow in XML parsing
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security DevOps Team <prodsec-dev>
Status: NEW --- QA Contact:
Severity: medium Docs Contact:
Priority: medium    
Version: unspecifiedKeywords: Security
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Hardware: All   
OS: Linux   
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A flaw was found in OFFIS DCMTK. A remote attacker could exploit this vulnerability by manipulating input to the XMLNode::parseFile function. This can lead to a heap-based buffer overflow, a type of memory corruption, which may result in information disclosure or denial of service.
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
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Bug Depends On: 2491279, 2491280    
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Description OSIDB Bzimport 2026-06-21 20:01:18 UTC 
A flaw has been found in OFFIS DCMTK up to 3.7.0. The affected element is the function XMLNode::parseFile in the library ofstd/libsrc/ofxml.cc. Executing a manipulation can lead to heap-based buffer overflow. The attack may be performed from remote. The exploit has been published and may be used. This patch is called 1d4b3815c0987840a983160bfc671fef63a3105b. It is best practice to apply a patch to resolve this issue. The vendor was contacted early, responded in a very professional manner and quickly released a fixed version of the affected product.