CVE-2026-5437 (GCVE-0-2026-5437)
Vulnerability from cvelistv5 – Published: 2026-04-09 14:44 – Updated: 2026-04-09 14:44
VLAI?
Title
Out-of-Bounds Read in DicomStreamReader
Summary
An out-of-bounds read vulnerability exists in `DicomStreamReader` during DICOM meta-header parsing. When processing malformed metadata structures, the parser may read beyond the bounds of the allocated metadata buffer. Although this issue does not typically crash the server or expose data directly to the attacker, it reflects insufficient input validation in the parsing logic.
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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"containers": {
"cna": {
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"product": "DICOM Server",
"vendor": "Orthanc",
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"status": "affected",
"version": "0",
"versionType": "custom"
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]
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"lang": "en",
"value": "An out-of-bounds read vulnerability exists in `DicomStreamReader` during DICOM meta-header parsing. When processing malformed metadata structures, the parser may read beyond the bounds of the allocated metadata buffer. Although this issue does not typically crash the server or expose data directly to the attacker, it reflects insufficient input validation in the parsing logic."
}
],
"problemTypes": [
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"descriptions": [
{
"description": "CWE-125 Out-of-bounds Read",
"lang": "en"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-04-09T14:44:17.972Z",
"orgId": "37e5125f-f79b-445b-8fad-9564f167944b",
"shortName": "certcc"
},
"references": [
{
"url": "https://www.orthanc-server.com/"
},
{
"url": "https://www.machinespirits.de/"
},
{
"url": "https://kb.cert.org/vuls/id/536588"
}
],
"source": {
"discovery": "UNKNOWN"
},
"title": "Out-of-Bounds Read in DicomStreamReader",
"x_generator": {
"engine": "VINCE 3.0.35",
"env": "prod",
"origin": "https://cveawg.mitre.org/api/cve/CVE-2026-5437"
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"cveMetadata": {
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"assignerShortName": "certcc",
"cveId": "CVE-2026-5437",
"datePublished": "2026-04-09T14:44:17.972Z",
"dateReserved": "2026-04-02T19:21:45.325Z",
"dateUpdated": "2026-04-09T14:44:17.972Z",
"state": "PUBLISHED"
},
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"dataVersion": "5.2",
"vulnerability-lookup:meta": {
"nvd": "{\"cve\":{\"id\":\"CVE-2026-5437\",\"sourceIdentifier\":\"cret@cert.org\",\"published\":\"2026-04-09T15:16:15.093\",\"lastModified\":\"2026-04-13T15:02:47.353\",\"vulnStatus\":\"Awaiting Analysis\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"An out-of-bounds read vulnerability exists in `DicomStreamReader` during DICOM meta-header parsing. When processing malformed metadata structures, the parser may read beyond the bounds of the allocated metadata buffer. Although this issue does not typically crash the server or expose data directly to the attacker, it reflects insufficient input validation in the parsing logic.\"}],\"metrics\":{},\"references\":[{\"url\":\"https://kb.cert.org/vuls/id/536588\",\"source\":\"cret@cert.org\"},{\"url\":\"https://www.machinespirits.de/\",\"source\":\"cret@cert.org\"},{\"url\":\"https://www.orthanc-server.com/\",\"source\":\"cret@cert.org\"}]}}"
}
}
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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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