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 | 0, 1.12.10 |
Updated affected versions to include 1.12.10, changed severity to HIGH, and noted that the vulnerability is actively exploited.
Initial creation
