CVE-2026-5439

HIGH

7.5

Descripcion

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.

Detalles CVE

Puntuacion CVSS v3.17.5

SeveridadHIGH

Vector CVSSCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Vector de ataqueNETWORK

ComplejidadLOW

Privilegios requeridosNONE

Interaccion usuarioNONE

Publicado4/9/2026

Ultima modificacion4/15/2026

Fuentenvd

Avistamientos honeypot0

Productos afectados

orthanc-server:orthanc

Debilidades (CWE)

CWE-770

Referencias

https://kb.cert.org/vuls/id/536588(cret@cert.org)

https://www.machinespirits.de/(cret@cert.org)

https://www.orthanc-server.com/(cret@cert.org)

Correlaciones IOC

Sin correlaciones registradas

This product uses data from the NVD API but is not endorsed or certified by the NVD.