High
pikepdf — security advisory
models/metadata.py in the pikepdf package 1.3.0 through 2.9.2 for Python allows XXE when parsing XMP metadata entries.
- Products
- pikepdf
- Affected versions
- 1.10.0+dfsg-1build1, 1.10.3+dfsg-1, 1.17.3+dfsg-5ubuntu1, 1.6.4+dfsg-1, 1.6.4+dfsg-1build1, 1.6.5+dfsg-1, 1.7.0+dfsg-1, 1.8.1+dfsg-1, 10.2.0+dfsg-1, 10.3.0+dfsg-1, 10.3.0+dfsg-1build1, 10.5.0+dfsg-2, 3.2.0+dfsg-2, 4.2.0+dfsg-1, 5.0.1+dfsg-1, 8.3.2+dfsg-1, 8.5.1+dfsg-1, 8.5.1+dfsg-1build1, 8.7.1+dfsg-2, 8.7.1+dfsg-2build1, 8.7.1+dfsg-2build2, 9.5.2+dfsg-1build2, 9.5.2+dfsg-1build3
- Fixed versions
- Not specified
- CVEs
- CVE-2021-29421
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 31 Oct 2026, 01:37 UTC · Revision 1
Source evidence
models/metadata.py in the pikepdf package 1.3.0 through 2.9.2 for Python allows XXE when parsing XMP metadata entries.
osv:UBUNTU-CVE-2021-29421
pikepdf
Fixed versions: Not specified
pikepdf
Fixed versions: Not specified
pikepdf
Fixed versions: Not specified
pikepdf
Fixed versions: Not specified
pikepdf
Fixed versions: Not specified
pikepdf
Fixed versions: Not specified
Complete source record
{
"id": "e5e63fa498a2ad39426b593441d015072f66c62c3051cd409917cebb4a2c1ad1",
"url": "https://osv.dev/vulnerability/UBUNTU-CVE-2021-29421",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "UBUNTU-CVE-2021-29421",
"summary": "models/metadata.py in the pikepdf package 1.3.0 through 2.9.2 for Python allows XXE when parsing XMP metadata entries.",
"evidence": "osv:UBUNTU-CVE-2021-29421",
"products": [
{
"name": {
"value": "pikepdf",
"evidence": "/affected/0/package/name"
},
"prerequisites": [],
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"affected_versions": [
{
"value": "1.6.4+dfsg-1",
"evidence": "/affected/0/versions"
},
{
"value": "1.6.4+dfsg-1build1",
"evidence": "/affected/0/versions"
},
{
"value": "1.6.5+dfsg-1",
"evidence": "/affected/0/versions"
},
{
"value": "1.7.0+dfsg-1",
"evidence": "/affected/0/versions"
},
{
"value": "1.8.1+dfsg-1",
"evidence": "/affected/0/versions"
},
{
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"evidence": "/affected/0/versions"
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{
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{
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},
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"affected_versions": [
{
"value": "1.17.3+dfsg-5ubuntu1",
"evidence": "/affected/1/versions"
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{
"value": "3.2.0+dfsg-2",
"evidence": "/affected/1/versions"
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{
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"evidence": "/affected/1/versions"
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{
"value": "5.0.1+dfsg-1",
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}
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},
{
"name": {
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"affected_versions": [
{
"value": "8.3.2+dfsg-1",
"evidence": "/affected/2/versions"
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{
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"evidence": "/affected/2/versions"
},
{
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"evidence": "/affected/2/versions"
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{
"value": "8.7.1+dfsg-2",
"evidence": "/affected/2/versions"
},
{
"value": "8.7.1+dfsg-2build1",
"evidence": "/affected/2/versions"
},
{
"value": "8.7.1+dfsg-2build2",
"evidence": "/affected/2/versions"
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{
"name": {
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"evidence": "/affected/3/package/name"
},
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"affected_versions": [
{
"value": "9.5.2+dfsg-1build2",
"evidence": "/affected/3/versions"
}
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},
{
"name": {
"value": "pikepdf",
"evidence": "/affected/4/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "10.3.0+dfsg-1build1",
"evidence": "/affected/4/versions"
},
{
"value": "10.5.0+dfsg-2",
"evidence": "/affected/4/versions"
}
]
},
{
"name": {
"value": "pikepdf",
"evidence": "/affected/5/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "9.5.2+dfsg-1build2",
"evidence": "/affected/5/versions"
},
{
"value": "9.5.2+dfsg-1build3",
"evidence": "/affected/5/versions"
},
{
"value": "10.2.0+dfsg-1",
"evidence": "/affected/5/versions"
},
{
"value": "10.3.0+dfsg-1",
"evidence": "/affected/5/versions"
},
{
"value": "10.3.0+dfsg-1build1",
"evidence": "/affected/5/versions"
}
]
}
],
"severity": "high",
"structured": {
"id": "UBUNTU-CVE-2021-29421",
"aliases": [
"UBUNTU-CVE-2021-29421"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N"
},
{
"type": "Ubuntu",
"score": "medium"
}
],
"affected": [
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "pikepdf",
"purl": "pkg:deb/ubuntu/pikepdf?arch=source&distro=focal",
"ecosystem": "Ubuntu:20.04:LTS"
},
"versions": [
"1.6.4+dfsg-1",
"1.6.4+dfsg-1build1",
"1.6.5+dfsg-1",
"1.7.0+dfsg-1",
"1.8.1+dfsg-1",
"1.10.0+dfsg-1build1",
"1.10.3+dfsg-1"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-29421.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "python3-pikepdf",
"binary_version": "1.10.3+dfsg-1"
}
]
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "pikepdf",
"purl": "pkg:deb/ubuntu/pikepdf?arch=source&distro=jammy",
"ecosystem": "Ubuntu:22.04:LTS"
},
"versions": [
"1.17.3+dfsg-5ubuntu1",
"3.2.0+dfsg-2",
"4.2.0+dfsg-1",
"5.0.1+dfsg-1"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-29421.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "python3-pikepdf",
"binary_version": "5.0.1+dfsg-1"
}
]
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
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],
"package": {
"name": "pikepdf",
"purl": "pkg:deb/ubuntu/pikepdf?arch=source&distro=noble",
"ecosystem": "Ubuntu:24.04:LTS"
},
"versions": [
"8.3.2+dfsg-1",
"8.5.1+dfsg-1",
"8.5.1+dfsg-1build1",
"8.7.1+dfsg-2",
"8.7.1+dfsg-2build1",
"8.7.1+dfsg-2build2"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-29421.json"
},
"ecosystem_specific": {
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{
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{
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"package": {
"name": "pikepdf",
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"ecosystem": "Ubuntu:25.10"
},
"versions": [
"9.5.2+dfsg-1build2"
],
"database_specific": {
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{
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"ecosystem": "Ubuntu:26.10"
},
"versions": [
"10.3.0+dfsg-1build1",
"10.5.0+dfsg-2"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-29421.json"
},
"ecosystem_specific": {
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{
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"binary_version": "10.5.0+dfsg-2"
}
]
}
},
{
"ranges": [
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"type": "ECOSYSTEM",
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],
"package": {
"name": "pikepdf",
"purl": "pkg:deb/ubuntu/pikepdf?arch=source&distro=resolute",
"ecosystem": "Ubuntu:26.04:LTS"
},
"versions": [
"9.5.2+dfsg-1build2",
"9.5.2+dfsg-1build3",
"10.2.0+dfsg-1",
"10.3.0+dfsg-1",
"10.3.0+dfsg-1build1"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-29421.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "python3-pikepdf",
"binary_version": "10.3.0+dfsg-1build1"
}
]
}
}
],
"modified": "2026-10-17T12:57:13.396799624Z",
"provider": "osv",
"upstream": [
"CVE-2021-29421"
],
"references": [
"https://ubuntu.com/security/CVE-2021-29421",
"https://github.com/pikepdf/pikepdf/commit/3f38f73218e5e782fe411ccbb3b44a793c0b343a",
"https://www.cve.org/CVERecord?id=CVE-2021-29421"
]
},
"related_cves": [
{
"value": "CVE-2021-29421",
"evidence": "/upstream"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 356941,
"published_at": "2021-04-01T20:15:00+00:00"
}