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CVE-2026-5438
Published: Apr 9, 2026
Modified: Apr 14, 2026
PUBLISHED
Description
A gzip decompression bomb vulnerability exists when Orthanc processes HTTP request with `Content-Encoding: gzip`. The server does not enforce limits on decompressed size and allocates memory based on attacker-controlled compression metadata. A specially crafted gzip payload can trigger excessive memory allocation and exhaust system memory.
| Vendor | Product | Versions |
|---|---|---|
Orthanc | DICOM Server | affected 0 - <= 1.12.10 |
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