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CVE-2026-5439
Published: Apr 9, 2026
Modified: Apr 14, 2026
PUBLISHED
Description
A memory exhaustion vulnerability exists in ZIP archive processing. Orthanc automatically extracts ZIP archives uploaded to certain endpoints and trusts metadata fields describing the uncompressed size of archived files. An attacker can craft a small ZIP archive containing a forged size value, causing the server to allocate extremely large buffers during extraction.
| Vendor | Product | Versions |
|---|---|---|
Orthanc | DICOM Server | affected 0 - <= 1.12.10 |
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