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CVE-2026-5439

Orthanc

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.

CVSS 7.5EPSS 0.426%Risque 0.78
Voir la source
Publication
2026-04-09 15:16:15
Versions concernées
unknown
Type
Core software
Vecteur
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H