UBUNTU-CVE-2026-6653
- Source
- https://ubuntu.com/security/CVE-2026-6653
- Import Source
- https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-6653.json
- JSON Data
- https://api.osv.dev/v1/vulns/UBUNTU-CVE-2026-6653
- Upstream
- Downstream
- Related
- Published
- 2026-06-22T00:00:00Z
- Modified
- 2026-07-15T19:47:56Z
- Severity
-
- 7.0 (High) CVSS_V4 - CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:H/VI:L/VA:L/SC:N/SI:N/SA:N/E:P CVSS Calculator
- 9.8 (Critical) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
- Ubuntu - medium
- Summary
- [none]
- Details
-
Use After Free in libxml2's xmlParseInternalSubset from GNOME libxml2 version 2.9.11 to 2.11.0 allows a remote attacker to cause a denial-of-service via maliciously crafted XML input with improper entity resolution handling.
- References
Affected packages
Ubuntu:22.04:LTS / libxml2
Package
- Name
- libxml2
- Purl
- pkg:deb/ubuntu/libxml2?arch=source&distro=jammy
Affected ranges
- Type
- ECOSYSTEM
- Events
-
Introduced0 Unknown introduced version / All previous versions are affectedFixed2.9.13+dfsg-1ubuntu0.12
Affected versions
2.*
2.9.12+dfsg-4
2.9.12+dfsg-5
2.9.12+dfsg-6
2.9.13+dfsg-1
2.9.13+dfsg-1build1
2.9.13+dfsg-1ubuntu0.1
2.9.13+dfsg-1ubuntu0.2
2.9.13+dfsg-1ubuntu0.3
2.9.13+dfsg-1ubuntu0.4
2.9.13+dfsg-1ubuntu0.5
2.9.13+dfsg-1ubuntu0.6
2.9.13+dfsg-1ubuntu0.7
2.9.13+dfsg-1ubuntu0.8
2.9.13+dfsg-1ubuntu0.9
2.9.13+dfsg-1ubuntu0.10
2.9.13+dfsg-1ubuntu0.11
Ecosystem specific
{
"availability": "No subscription required",
"binaries": [
{
"binary_name": "libxml2",
"binary_version": "2.9.13+dfsg-1ubuntu0.12"
},
{
"binary_name": "libxml2-utils",
"binary_version": "2.9.13+dfsg-1ubuntu0.12"
},
{
"binary_name": "python3-libxml2",
"binary_version": "2.9.13+dfsg-1ubuntu0.12"
}
]
}
Ubuntu:24.04:LTS / libxml2
Package
- Name
- libxml2
- Purl
- pkg:deb/ubuntu/libxml2?arch=source&distro=noble
Affected ranges
- Type
- ECOSYSTEM
- Events
-
Introduced0 Unknown introduced version / All previous versions are affectedFixed2.9.14+dfsg-1.3ubuntu3.8
Affected versions
2.*
2.9.14+dfsg-1.3
2.9.14+dfsg-1.3build1
2.9.14+dfsg-1.3build2
2.9.14+dfsg-1.3build3
2.9.14+dfsg-1.3ubuntu1
2.9.14+dfsg-1.3ubuntu2
2.9.14+dfsg-1.3ubuntu3
2.9.14+dfsg-1.3ubuntu3.1
2.9.14+dfsg-1.3ubuntu3.2
2.9.14+dfsg-1.3ubuntu3.3
2.9.14+dfsg-1.3ubuntu3.4
2.9.14+dfsg-1.3ubuntu3.5
2.9.14+dfsg-1.3ubuntu3.6
2.9.14+dfsg-1.3ubuntu3.7
Ecosystem specific
{
"availability": "No subscription required",
"binaries": [
{
"binary_name": "libxml2",
"binary_version": "2.9.14+dfsg-1.3ubuntu3.8"
},
{
"binary_name": "libxml2-utils",
"binary_version": "2.9.14+dfsg-1.3ubuntu3.8"
},
{
"binary_name": "python3-libxml2",
"binary_version": "2.9.14+dfsg-1.3ubuntu3.8"
}
]
}