7.5

CVE-2026-5438

Gzip Decompression Bomb via Content-Encoding Header

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.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Orthanc-server ≫ Orthanc Version < 1.12.11
Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.48% 0.378
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
CISA-ADP 7.5 3.9 3.6
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CWE-770 Allocation of Resources Without Limits or Throttling

The product allocates a reusable resource or group of resources on behalf of an actor without imposing any intended restrictions on the size or number of resources that can be allocated.

https://www.orthanc-server.com/
Product
https://www.machinespirits.de/
Not Applicable
https://kb.cert.org/vuls/id/536588
Third Party Advisory
VDB Entry