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CVE-2026-3650 is a high-severity memory leak vulnerability in the Grassroots DICOM library (GDCM) version 3.2.2. The flaw is triggered when GDCM parses malformed DICOM files containing non-standard VR types in file meta information. During parsing, memory is allocated excessively and not properly released, allowing a very small crafted file—reported as roughly 150 bytes—to trigger allocations of up to approximately 4.2 GB in a single read operation. This results in heap exhaustion and resource depletion, producing a denial-of-service condition in software and systems that embed or depend on GDCM, including medical imaging workflows such as PACS servers, diagnostic workstations, DICOM viewers, and related tooling.
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11 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A high-severity remotely exploitable denial-of-service vulnerability in the Grassroots DICOM (GDCM) library caused by improper memory release, allowing a small malicious DICOM file to exhaust memory and crash medical imaging systems such as PACS servers and diagnostic workstations.
A high-severity remotely exploitable denial-of-service vulnerability in the Grassroots DICOM (GDCM) library caused by a memory leak / missing release of memory after effective lifetime, allowing malformed DICOM files to exhaust memory and crash medical imaging systems.
A memory leak vulnerability in the Grassroots DICOM library (GDCM) that can be triggered by parsing malformed DICOM files with non-standard VR types, causing excessive memory allocation and denial of service.
A high-severity memory leak vulnerability in Grassroots DICOM (GDCM) 3.2.2 that can be triggered by parsing malformed DICOM files with non-standard VR types in file meta information, leading to excessive memory allocation, resource depletion, and denial of service.
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Every observed campaign linking this CVE to a named adversary.
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Cross-references every affected SKU, including bundled OEM variants.
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