High
netcdf, netcdf-parallel — security advisory
Unidata netcdf-c through 4.10.1 contains an out-of-bounds write vulnerability in NC4_HDF5_inq_attname() that copies HDF5 attribute names into a fixed 256-byte buffer without length validation. Attackers can craft HDF5 files with oversized attribute names to overflow the destination buffer, causing memory corruption and crashes when applications enumerate attribute names.
- Products
- netcdf, netcdf-parallel
- Affected versions
- 1:4.1.3-6build1, 1:4.1.3-7, 1:4.1.3-7ubuntu2, 1:4.10.0-1, 1:4.10.1-1, 1:4.10.1-1build1, 1:4.10.1-2, 1:4.10.1-2build1, 1:4.4.0-1, 1:4.4.0-2, 1:4.4.0~rc2-1build1, 1:4.4.0~rc3-1, 1:4.4.1.1-2ubuntu1, 1:4.5.0-1, 1:4.5.0-2, 1:4.6.0-2, 1:4.6.0-2build1, 1:4.6.2-1, 1:4.6.2-1build1, 1:4.7.3-1, 1:4.7.4-1, 1:4.7.4-1build1, 1:4.8.1-1, 1:4.8.1-2, 1:4.9.0-1ubuntu1, 1:4.9.0-1ubuntu3, 1:4.9.0-1ubuntu4, 1:4.9.2-2ubuntu1, 1:4.9.2-3ubuntu1, 1:4.9.2-5ubuntu3, 1:4.9.2-5ubuntu4, 1:4.9.3-1build1, 1:4.9.3-1build2, 1:4.9.3-2build1, 1:4.9.3-2build2
- Fixed versions
- Not specified
- CVEs
- CVE-2026-86095
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 31 Oct 2026, 03:24 UTC · Revision 1
Source evidence
Unidata netcdf-c through 4.10.1 contains an out-of-bounds write vulnerability in NC4_HDF5_inq_attname() that copies HDF5 attribute names into a fixed 256-byte buffer without length validation. Attackers can craft HDF5 files with oversized attribute names to overflow the destination buffer, causing memory corruption and crashes when applications enumerate attribute names.
osv:UBUNTU-CVE-2026-86095
netcdf
Fixed versions: Not specified
netcdf
Fixed versions: Not specified
netcdf
Fixed versions: Not specified
netcdf
Fixed versions: Not specified
netcdf-parallel
Fixed versions: Not specified
netcdf
Fixed versions: Not specified
netcdf-parallel
Fixed versions: Not specified
netcdf
Fixed versions: Not specified
netcdf-parallel
Fixed versions: Not specified
netcdf
Fixed versions: Not specified
netcdf-parallel
Fixed versions: Not specified
netcdf
Fixed versions: Not specified
netcdf-parallel
Fixed versions: Not specified
Complete source record
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"url": "https://osv.dev/vulnerability/UBUNTU-CVE-2026-86095",
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],
"modified": "2026-10-17T13:01:13.732410882Z",
"provider": "osv",
"upstream": [
"CVE-2026-86095"
],
"references": [
"https://ubuntu.com/security/CVE-2026-86095",
"https://www.cve.org/CVERecord?id=CVE-2026-86095"
]
},
"related_cves": [
{
"value": "CVE-2026-86095",
"evidence": "/upstream"
}
],
"security_relevant": true,
"severity_evidence": "/severity/1/score"
},
"source_id": "core-osv",
"document_id": 361321,
"published_at": "2026-09-04T23:18:00+00:00"
}