Medium
onnx — security advisory
Open Neural Network Exchange (ONNX) is an open standard for machine learning interoperability. From 1.9.0 before 1.22.0, onnx.version_converter.convert_version() can dereference a null pointer in Upsample_6_7::adapt_upsample_6_7() in onnx/version_converter/adapters/upsample_6_7.h when processing an untrusted model with an Upsample node that has zero inputs, causing an unrecoverable denial of service. This issue is fixed in version 1.22.0.
- Products
- onnx
- Affected versions
- 1.13.1-3, 1.13.1-3build1, 1.14.1-2, 1.14.1-2.1, 1.14.1-2.1build1, 1.14.1-2.1build2, 1.14.1-2.1ubuntu0.1~esm1, 1.17.0-3build1, 1.20.0-1, 1.20.0-6, 1.7.0+dfsg-3build1, 1.7.0+dfsg-3build2, 1.7.0+dfsg-3ubuntu1, 1.7.0+dfsg-3ubuntu2
- Fixed versions
- Not specified
- CVEs
- CVE-2026-44512
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 31 Oct 2026, 03:04 UTC · Revision 1
Source evidence
Open Neural Network Exchange (ONNX) is an open standard for machine learning interoperability. From 1.9.0 before 1.22.0, onnx.version_converter.convert_version() can dereference a null pointer in Upsample_6_7::adapt_upsample_6_7() in onnx/version_converter/adapters/upsample_6_7.h when processing an untrusted model with an Upsample node that has zero inputs, causing an unrecoverable denial of service. This issue is fixed in version 1.22.0.
osv:UBUNTU-CVE-2026-44512
onnx
Fixed versions: Not specified
onnx
Fixed versions: Not specified
onnx
Fixed versions: Not specified
onnx
Fixed versions: Not specified
onnx
Fixed versions: Not specified
Complete source record
{
"id": "ef10ffe07815bcf659a5695370d4db9e1bbe7e23f4b36112785013ed37b65e10",
"url": "https://osv.dev/vulnerability/UBUNTU-CVE-2026-44512",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "UBUNTU-CVE-2026-44512",
"summary": "Open Neural Network Exchange (ONNX) is an open standard for machine learning interoperability. From 1.9.0 before 1.22.0, onnx.version_converter.convert_version() can dereference a null pointer in Upsample_6_7::adapt_upsample_6_7() in onnx/version_converter/adapters/upsample_6_7.h when processing an untrusted model with an Upsample node that has zero inputs, causing an unrecoverable denial of service. This issue is fixed in version 1.22.0.",
"evidence": "osv:UBUNTU-CVE-2026-44512",
"products": [
{
"name": {
"value": "onnx",
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},
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"fixed_versions": [],
"affected_versions": [
{
"value": "1.7.0+dfsg-3build1",
"evidence": "/affected/0/versions"
},
{
"value": "1.7.0+dfsg-3build2",
"evidence": "/affected/0/versions"
},
{
"value": "1.7.0+dfsg-3ubuntu1",
"evidence": "/affected/0/versions"
},
{
"value": "1.7.0+dfsg-3ubuntu2",
"evidence": "/affected/0/versions"
}
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},
{
"name": {
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"evidence": "/affected/1/package/name"
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{
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"evidence": "/affected/1/versions"
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{
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"evidence": "/affected/1/versions"
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{
"value": "1.14.1-2.1build1",
"evidence": "/affected/1/versions"
},
{
"value": "1.14.1-2.1build2",
"evidence": "/affected/1/versions"
},
{
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"evidence": "/affected/1/versions"
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{
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{
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"affected_versions": [
{
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"evidence": "/affected/3/versions"
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{
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}
]
},
{
"name": {
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"evidence": "/affected/4/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
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"evidence": "/affected/4/versions"
},
{
"value": "1.20.0-1",
"evidence": "/affected/4/versions"
}
]
}
],
"severity": "medium",
"structured": {
"id": "UBUNTU-CVE-2026-44512",
"aliases": [
"UBUNTU-CVE-2026-44512"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H"
},
{
"type": "Ubuntu",
"score": "medium"
}
],
"affected": [
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
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"purl": "pkg:deb/ubuntu/onnx?arch=source&distro=jammy",
"ecosystem": "Ubuntu:22.04:LTS"
},
"versions": [
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"1.7.0+dfsg-3build2",
"1.7.0+dfsg-3ubuntu1",
"1.7.0+dfsg-3ubuntu2"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-44512.json"
},
"ecosystem_specific": {
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"binary_name": "libonnx-testdata",
"binary_version": "1.7.0+dfsg-3ubuntu2"
},
{
"binary_name": "libonnx1",
"binary_version": "1.7.0+dfsg-3ubuntu2"
},
{
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},
{
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}
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}
},
{
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"package": {
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"purl": "pkg:deb/ubuntu/onnx?arch=source&distro=esm-apps%2Fnoble",
"ecosystem": "Ubuntu:Pro:24.04:LTS"
},
"versions": [
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"1.13.1-3build1",
"1.14.1-2",
"1.14.1-2.1",
"1.14.1-2.1build1",
"1.14.1-2.1build2",
"1.14.1-2.1ubuntu0.1~esm1"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-44512.json"
},
"ecosystem_specific": {
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{
"binary_name": "libonnx-testdata",
"binary_version": "1.14.1-2.1ubuntu0.1~esm1"
},
{
"binary_name": "libonnx1t64",
"binary_version": "1.14.1-2.1ubuntu0.1~esm1"
},
{
"binary_name": "python3-onnx",
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}
]
}
},
{
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],
"package": {
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"purl": "pkg:deb/ubuntu/onnx?arch=source&distro=questing",
"ecosystem": "Ubuntu:25.10"
},
"versions": [
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],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-44512.json"
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{
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"package": {
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"ecosystem": "Ubuntu:26.10"
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"versions": [
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],
"database_specific": {
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{
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"ecosystem": "Ubuntu:26.04:LTS"
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],
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},
"ecosystem_specific": {
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"binary_name": "libonnx-testdata",
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{
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],
"modified": "2026-10-17T13:00:09.713619100Z",
"provider": "osv",
"upstream": [
"CVE-2026-44512"
],
"references": [
"https://ubuntu.com/security/CVE-2026-44512",
"https://www.cve.org/CVERecord?id=CVE-2026-44512",
"https://github.com/onnx/onnx/commit/cd310408165ad47c3cd7eb2b86cb5b80aa2e4fdf",
"https://github.com/onnx/onnx/pull/7813",
"https://github.com/onnx/onnx/releases/tag/v1.22.0",
"https://github.com/onnx/onnx/security/advisories/GHSA-hwpq-hmq9-wj77"
]
},
"related_cves": [
{
"value": "CVE-2026-44512",
"evidence": "/upstream"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 360374,
"published_at": "2026-07-08T20:16:00+00:00"
}