orthanc: An out-of-bounds read vulnerability exists in `DicomStreamReader` during DICOM meta-header parsing
CVE-2026-5437 is fixed in orthanc on 1 platform by DEBIAN-CVE-2026-5437 (version 1.12.10+dfsg-4), released April 9, 2026. It is not reported as exploited. Patch Radar priority: High.
An out-of-bounds read vulnerability exists in `DicomStreamReader` during DICOM meta-header parsing. When processing malformed metadata structures, the parser may read beyond the bounds of the allocated metadata buffer. Although this issue does not typically crash the server or expose data directly to the attacker, it reflects insufficient input validation in the parsing logic.
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| orthanc · Debian 14 | 1.12.10+dfsg-4 | DEBIAN-CVE-2026-5437 | Apr 9, 2026 |
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