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CVE-2026-5445

Orthanc

Description

An out-of-bounds read vulnerability exists in the `DecodeLookupTable` function within `DicomImageDecoder.cpp`. The lookup-table decoding logic used for `PALETTE COLOR` images does not validate pixel indices against the lookup table size. Crafted images containing indices larger than the palette size cause the decoder to read beyond allocated lookup table memory and expose heap contents in the output image.

CVSS 9.1EPSS 0.666%Risque 0.96
Voir la source
Publication
2026-04-09 15:16:16
Versions concernées
unknown
Type
Core software
Vecteur
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H