Medium
tinyobjloader — security advisory
A stack overflow in the experimental/tinyobj_loader_opt.h file of tinyobjloader commit d56555b allows attackers to cause a Denial of Service (DoS) via supplying a crafted .mtl file.
- Products
- tinyobjloader
- Affected versions
- 2.0.0~rc10+dfsg-3, 2.0.0~rc10+dfsg-3build1, 2.0.0~rc10+dfsg-3build2, 2.0.0~rc13+dfsg-2build1, 2.0.0~rc13+dfsg-3, 2.0.0~rc13+dfsg-3build1, 2.0.0~rc13+dfsg-3build2, 2.0.0~rc5+dfsg1-4build1, 2.0.0~rc5+dfsg1-4build2, 2.0.0~rc5+dfsg1-5, 2.0.0~rc5+dfsg1-5build1
- Fixed versions
- Not specified
- CVEs
- CVE-2026-29628
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 31 Oct 2026, 02:58 UTC · Revision 1
Source evidence
A stack overflow in the experimental/tinyobj_loader_opt.h file of tinyobjloader commit d56555b allows attackers to cause a Denial of Service (DoS) via supplying a crafted .mtl file.
osv:UBUNTU-CVE-2026-29628
tinyobjloader
Fixed versions: Not specified
tinyobjloader
Fixed versions: Not specified
tinyobjloader
Fixed versions: Not specified
tinyobjloader
Fixed versions: Not specified
tinyobjloader
Fixed versions: Not specified
Complete source record
{
"id": "f818b12ff33f747717ca38936b8cc72ea4e624097bdc94ef1865e41e7e2429ad",
"url": "https://osv.dev/vulnerability/UBUNTU-CVE-2026-29628",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "UBUNTU-CVE-2026-29628",
"summary": "A stack overflow in the experimental/tinyobj_loader_opt.h file of tinyobjloader commit d56555b allows attackers to cause a Denial of Service (DoS) via supplying a crafted .mtl file.",
"evidence": "osv:UBUNTU-CVE-2026-29628",
"products": [
{
"name": {
"value": "tinyobjloader",
"evidence": "/affected/0/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "2.0.0~rc5+dfsg1-4build1",
"evidence": "/affected/0/versions"
},
{
"value": "2.0.0~rc5+dfsg1-4build2",
"evidence": "/affected/0/versions"
},
{
"value": "2.0.0~rc5+dfsg1-5",
"evidence": "/affected/0/versions"
},
{
"value": "2.0.0~rc5+dfsg1-5build1",
"evidence": "/affected/0/versions"
}
]
},
{
"name": {
"value": "tinyobjloader",
"evidence": "/affected/1/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "2.0.0~rc10+dfsg-3",
"evidence": "/affected/1/versions"
},
{
"value": "2.0.0~rc10+dfsg-3build1",
"evidence": "/affected/1/versions"
},
{
"value": "2.0.0~rc10+dfsg-3build2",
"evidence": "/affected/1/versions"
}
]
},
{
"name": {
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"evidence": "/affected/2/package/name"
},
"prerequisites": [],
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"affected_versions": [
{
"value": "2.0.0~rc13+dfsg-2build1",
"evidence": "/affected/2/versions"
},
{
"value": "2.0.0~rc13+dfsg-3",
"evidence": "/affected/2/versions"
}
]
},
{
"name": {
"value": "tinyobjloader",
"evidence": "/affected/3/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "2.0.0~rc13+dfsg-3build2",
"evidence": "/affected/3/versions"
}
]
},
{
"name": {
"value": "tinyobjloader",
"evidence": "/affected/4/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "2.0.0~rc13+dfsg-3",
"evidence": "/affected/4/versions"
},
{
"value": "2.0.0~rc13+dfsg-3build1",
"evidence": "/affected/4/versions"
},
{
"value": "2.0.0~rc13+dfsg-3build2",
"evidence": "/affected/4/versions"
}
]
}
],
"severity": "medium",
"structured": {
"id": "UBUNTU-CVE-2026-29628",
"aliases": [
"UBUNTU-CVE-2026-29628"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"
},
{
"type": "Ubuntu",
"score": "medium"
}
],
"affected": [
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "tinyobjloader",
"purl": "pkg:deb/ubuntu/tinyobjloader?arch=source&distro=jammy",
"ecosystem": "Ubuntu:22.04:LTS"
},
"versions": [
"2.0.0~rc5+dfsg1-4build1",
"2.0.0~rc5+dfsg1-4build2",
"2.0.0~rc5+dfsg1-5",
"2.0.0~rc5+dfsg1-5build1"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-29628.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "libtinyobjloader1",
"binary_version": "2.0.0~rc5+dfsg1-5build1"
},
{
"binary_name": "python3-tinyobjloader",
"binary_version": "2.0.0~rc5+dfsg1-5build1"
}
]
}
},
{
"ranges": [
{
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"events": [
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],
"package": {
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"purl": "pkg:deb/ubuntu/tinyobjloader?arch=source&distro=noble",
"ecosystem": "Ubuntu:24.04:LTS"
},
"versions": [
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"2.0.0~rc10+dfsg-3build1",
"2.0.0~rc10+dfsg-3build2"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-29628.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "libtinyobjloader2rc10",
"binary_version": "2.0.0~rc10+dfsg-3build2"
},
{
"binary_name": "python3-tinyobjloader",
"binary_version": "2.0.0~rc10+dfsg-3build2"
}
]
}
},
{
"ranges": [
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"type": "ECOSYSTEM",
"events": [
{
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}
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}
],
"package": {
"name": "tinyobjloader",
"purl": "pkg:deb/ubuntu/tinyobjloader?arch=source&distro=questing",
"ecosystem": "Ubuntu:25.10"
},
"versions": [
"2.0.0~rc13+dfsg-2build1",
"2.0.0~rc13+dfsg-3"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-29628.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "libtinyobjloader2rc13",
"binary_version": "2.0.0~rc13+dfsg-3"
},
{
"binary_name": "python3-tinyobjloader",
"binary_version": "2.0.0~rc13+dfsg-3"
}
]
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "tinyobjloader",
"purl": "pkg:deb/ubuntu/tinyobjloader?arch=source&distro=stonking",
"ecosystem": "Ubuntu:26.10"
},
"versions": [
"2.0.0~rc13+dfsg-3build2"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-29628.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "libtinyobjloader2rc13",
"binary_version": "2.0.0~rc13+dfsg-3build2"
},
{
"binary_name": "python3-tinyobjloader",
"binary_version": "2.0.0~rc13+dfsg-3build2"
}
]
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "tinyobjloader",
"purl": "pkg:deb/ubuntu/tinyobjloader?arch=source&distro=resolute",
"ecosystem": "Ubuntu:26.04:LTS"
},
"versions": [
"2.0.0~rc13+dfsg-3",
"2.0.0~rc13+dfsg-3build1",
"2.0.0~rc13+dfsg-3build2"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-29628.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "libtinyobjloader2rc13",
"binary_version": "2.0.0~rc13+dfsg-3build2"
},
{
"binary_name": "python3-tinyobjloader",
"binary_version": "2.0.0~rc13+dfsg-3build2"
}
]
}
}
],
"modified": "2026-10-17T12:59:57.114293392Z",
"provider": "osv",
"upstream": [
"CVE-2026-29628"
],
"references": [
"https://ubuntu.com/security/CVE-2026-29628",
"https://www.cve.org/CVERecord?id=CVE-2026-29628",
"https://github.com/kiyochii/CVE-2026-29628",
"https://github.com/kiyochii/tinyobjloader/commit/386b73bb8c1a855236beb73b11f45f7feac4e03a"
]
},
"related_cves": [
{
"value": "CVE-2026-29628",
"evidence": "/upstream"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 360028,
"published_at": "2026-04-13T15:17:00+00:00"
}