libxstream-java — security advisory
XStream is a simple library to serialize objects to XML and back again. In affected versions this vulnerability may allow a remote attacker has sufficient rights to execute commands of the host only by manipulating the processed input stream. No user is affected, who followed the recommendation to setup XStream's security framework with a whitelist limited to the minimal required types. XStream 1.4.18 uses no longer a blacklist by default, since it cannot be secured for general purpose.
- Products
- libxstream-java
- Affected versions
- Not specified
- Fixed versions
- 1.4.18-1
- CVEs
- CVE-2021-39144
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 1 Nov 2026, 00:39 UTC · Revision 1
Source evidence
XStream is a simple library to serialize objects to XML and back again. In affected versions this vulnerability may allow a remote attacker has sufficient rights to execute commands of the host only by manipulating the processed input stream. No user is affected, who followed the recommendation to setup XStream's security framework with a whitelist limited to the minimal required types. XStream 1.4.18 uses no longer a blacklist by default, since it cannot be secured for general purpose.
osv:DEBIAN-CVE-2021-39144
libxstream-java
Fixed versions: 1.4.18-1
libxstream-java
Fixed versions: 1.4.18-1
libxstream-java
Fixed versions: 1.4.18-1
Complete source record
{
"id": "a4b95a208193741fa504837b83a95347b015ef9c753c744a39bfd0413805ef9f",
"url": "https://osv.dev/vulnerability/DEBIAN-CVE-2021-39144",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "DEBIAN-CVE-2021-39144",
"summary": "XStream is a simple library to serialize objects to XML and back again. In affected versions this vulnerability may allow a remote attacker has sufficient rights to execute commands of the host only by manipulating the processed input stream. No user is affected, who followed the recommendation to setup XStream's security framework with a whitelist limited to the minimal required types. XStream 1.4.18 uses no longer a blacklist by default, since it cannot be secured for general purpose.",
"evidence": "osv:DEBIAN-CVE-2021-39144",
"products": [
{
"name": {
"value": "libxstream-java",
"evidence": "/affected/0/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "1.4.18-1",
"evidence": "/affected/0/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "libxstream-java",
"evidence": "/affected/1/package/name"
},
"prerequisites": [],
"fixed_versions": [
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"evidence": "/affected/1/ranges"
}
],
"affected_versions": []
},
{
"name": {
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},
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"fixed_versions": [
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"evidence": "/affected/2/ranges"
}
],
"affected_versions": []
}
],
"severity": "high",
"structured": {
"id": "DEBIAN-CVE-2021-39144",
"aliases": [
"DEBIAN-CVE-2021-39144"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H"
}
],
"affected": [
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
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],
"package": {
"name": "libxstream-java",
"purl": "pkg:deb/debian/libxstream-java?arch=source&distro=bookworm",
"ecosystem": "Debian:12"
},
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2021-39144.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "1.4.18-1"
}
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}
],
"package": {
"name": "libxstream-java",
"purl": "pkg:deb/debian/libxstream-java?arch=source&distro=trixie",
"ecosystem": "Debian:13"
},
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2021-39144.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "1.4.18-1"
}
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],
"package": {
"name": "libxstream-java",
"purl": "pkg:deb/debian/libxstream-java?arch=source&distro=forky",
"ecosystem": "Debian:14"
},
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2021-39144.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
}
],
"modified": "2026-10-23T18:03:31.996914400Z",
"provider": "osv",
"upstream": [
"CVE-2021-39144"
],
"references": [
"https://security-tracker.debian.org/tracker/CVE-2021-39144"
]
},
"related_cves": [
{
"value": "CVE-2021-39144",
"evidence": "/upstream"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 421819,
"published_at": "2021-08-23T18:15:12.087+00:00"
}