CVE-2026-5439
UNKNOWN
NVD
CVSS Score
0
Severity
UNKNOWN
Published
Apr 09, 2026
Vendor
unknown
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.