CVE-2026-5445 (GCVE-0-2026-5445)
Vulnerability from cvelistv5 – Published: 2026-04-09 14:42 – Updated: 2026-04-09 14:42
VLAI?
Title
Out-of-Bounds Read in DicomImageDecoder (DecodeLookupTable)
Summary
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.
Severity ?
No CVSS data available.
Assigner
References
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Orthanc | DICOM Server |
Affected:
0 , ≤ 1.12.10
(custom)
|
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}
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"problemTypes": [
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"descriptions": [
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"orgId": "37e5125f-f79b-445b-8fad-9564f167944b",
"shortName": "certcc"
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"references": [
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"url": "https://www.orthanc-server.com/"
},
{
"url": "https://www.machinespirits.de/"
},
{
"url": "https://kb.cert.org/vuls/id/536588"
}
],
"source": {
"discovery": "UNKNOWN"
},
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"dateReserved": "2026-04-02T19:23:30.637Z",
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"date": "2026-04-13",
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}
}
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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