DEBIAN-CVE-2026-0992

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Source
https://security-tracker.debian.org/tracker/CVE-2026-0992
Import Source
https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-0992.json
JSON Data
https://api.osv.dev/v1/vulns/DEBIAN-CVE-2026-0992
Upstream
  • CVE-2026-0992
Published
2026-01-15T15:15:52.657Z
Modified
2026-01-16T11:05:10.515041Z
Severity
  • 2.9 (Low) CVSS_V3 - CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L CVSS Calculator
Summary
[none]
Details

A flaw was found in the libxml2 library. This uncontrolled resource consumption vulnerability occurs when processing XML catalogs that contain repeated <nextCatalog> elements pointing to the same downstream catalog. A remote attacker can exploit this by supplying crafted catalogs, causing the parser to redundantly traverse catalog chains. This leads to excessive CPU consumption and degrades application availability, resulting in a denial-of-service condition.

References

Affected packages

Debian:11 / libxml2

Package

Name
libxml2
Purl
pkg:deb/debian/libxml2?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

2.*
2.9.10+dfsg-6.7
2.9.10+dfsg-6.7+deb11u1
2.9.10+dfsg-6.7+deb11u2
2.9.10+dfsg-6.7+deb11u3
2.9.10+dfsg-6.7+deb11u4
2.9.10+dfsg-6.7+deb11u5
2.9.10+dfsg-6.7+deb11u6
2.9.10+dfsg-6.7+deb11u7
2.9.10+dfsg-6.7+deb11u8
2.9.10+dfsg-6.7+deb11u9
2.9.12+dfsg-1
2.9.12+dfsg-2
2.9.12+dfsg-3
2.9.12+dfsg-4
2.9.12+dfsg-5
2.9.12+dfsg-6
2.9.13+dfsg-1
2.9.14+dfsg-1
2.9.14+dfsg-1.1
2.9.14+dfsg-1.2
2.9.14+dfsg-1.3~deb12u1
2.9.14+dfsg-1.3~deb12u2
2.9.14+dfsg-1.3~deb12u3
2.9.14+dfsg-1.3~deb12u4
2.9.14+dfsg-1.3~deb12u5
2.9.14+dfsg-1.3
2.12.3+dfsg-0exp1
2.12.5+dfsg-0exp1
2.12.6+dfsg-0exp1
2.12.6+dfsg-0exp2
2.12.7+dfsg-1
2.12.7+dfsg-2
2.12.7+dfsg-3
2.12.7+dfsg+really2.9.14-0.1
2.12.7+dfsg+really2.9.14-0.2
2.12.7+dfsg+really2.9.14-0.3
2.12.7+dfsg+really2.9.14-0.4
2.12.7+dfsg+really2.9.14-1
2.12.7+dfsg+really2.9.14-2
2.12.7+dfsg+really2.9.14-2.1
2.13.1+dfsg-0exp1
2.13.3+dfsg-0exp1
2.13.3+dfsg-0exp2
2.14.1+dfsg-0exp1
2.14.2+dfsg-0exp1
2.14.3+dfsg-0exp1
2.14.3+dfsg-0exp2
2.14.3+dfsg-0exp3
2.14.4+dfsg-0exp1
2.14.5+dfsg-0exp1
2.14.5+dfsg-0exp2
2.14.5+dfsg-0.1
2.14.5+dfsg-0.2
2.14.6+dfsg-0.1
2.15.0+dfsg-0.1
2.15.0+dfsg-0.2
2.15.0+dfsg-0.3
2.15.1+dfsg-0.1
2.15.1+dfsg-0.2
2.15.1+dfsg-0.3
2.15.1+dfsg-0.4
2.15.1+dfsg-0.5
2.15.1+dfsg-1
2.15.1+dfsg-2

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-0992.json"

Debian:12 / libxml2

Package

Name
libxml2
Purl
pkg:deb/debian/libxml2?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

2.*
2.9.14+dfsg-1.2
2.9.14+dfsg-1.3~deb12u1
2.9.14+dfsg-1.3~deb12u2
2.9.14+dfsg-1.3~deb12u3
2.9.14+dfsg-1.3~deb12u4
2.9.14+dfsg-1.3~deb12u5
2.9.14+dfsg-1.3
2.12.3+dfsg-0exp1
2.12.5+dfsg-0exp1
2.12.6+dfsg-0exp1
2.12.6+dfsg-0exp2
2.12.7+dfsg-1
2.12.7+dfsg-2
2.12.7+dfsg-3
2.12.7+dfsg+really2.9.14-0.1
2.12.7+dfsg+really2.9.14-0.2
2.12.7+dfsg+really2.9.14-0.3
2.12.7+dfsg+really2.9.14-0.4
2.12.7+dfsg+really2.9.14-1
2.12.7+dfsg+really2.9.14-2
2.12.7+dfsg+really2.9.14-2.1
2.13.1+dfsg-0exp1
2.13.3+dfsg-0exp1
2.13.3+dfsg-0exp2
2.14.1+dfsg-0exp1
2.14.2+dfsg-0exp1
2.14.3+dfsg-0exp1
2.14.3+dfsg-0exp2
2.14.3+dfsg-0exp3
2.14.4+dfsg-0exp1
2.14.5+dfsg-0exp1
2.14.5+dfsg-0exp2
2.14.5+dfsg-0.1
2.14.5+dfsg-0.2
2.14.6+dfsg-0.1
2.15.0+dfsg-0.1
2.15.0+dfsg-0.2
2.15.0+dfsg-0.3
2.15.1+dfsg-0.1
2.15.1+dfsg-0.2
2.15.1+dfsg-0.3
2.15.1+dfsg-0.4
2.15.1+dfsg-0.5
2.15.1+dfsg-1
2.15.1+dfsg-2

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-0992.json"

Debian:13 / libxml2

Package

Name
libxml2
Purl
pkg:deb/debian/libxml2?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

2.*
2.12.7+dfsg+really2.9.14-2.1
2.12.7+dfsg+really2.9.14-2.1+deb13u1
2.12.7+dfsg+really2.9.14-2.1+deb13u2
2.13.1+dfsg-0exp1
2.13.3+dfsg-0exp1
2.13.3+dfsg-0exp2
2.14.1+dfsg-0exp1
2.14.2+dfsg-0exp1
2.14.3+dfsg-0exp1
2.14.3+dfsg-0exp2
2.14.3+dfsg-0exp3
2.14.4+dfsg-0exp1
2.14.5+dfsg-0exp1
2.14.5+dfsg-0exp2
2.14.5+dfsg-0.1
2.14.5+dfsg-0.2
2.14.6+dfsg-0.1
2.15.0+dfsg-0.1
2.15.0+dfsg-0.2
2.15.0+dfsg-0.3
2.15.1+dfsg-0.1
2.15.1+dfsg-0.2
2.15.1+dfsg-0.3
2.15.1+dfsg-0.4
2.15.1+dfsg-0.5
2.15.1+dfsg-1
2.15.1+dfsg-2

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-0992.json"

Debian:14 / libxml2

Package

Name
libxml2
Purl
pkg:deb/debian/libxml2?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

2.*
2.12.7+dfsg+really2.9.14-2.1
2.13.1+dfsg-0exp1
2.13.3+dfsg-0exp1
2.13.3+dfsg-0exp2
2.14.1+dfsg-0exp1
2.14.2+dfsg-0exp1
2.14.3+dfsg-0exp1
2.14.3+dfsg-0exp2
2.14.3+dfsg-0exp3
2.14.4+dfsg-0exp1
2.14.5+dfsg-0exp1
2.14.5+dfsg-0exp2
2.14.5+dfsg-0.1
2.14.5+dfsg-0.2
2.14.6+dfsg-0.1
2.15.0+dfsg-0.1
2.15.0+dfsg-0.2
2.15.0+dfsg-0.3
2.15.1+dfsg-0.1
2.15.1+dfsg-0.2
2.15.1+dfsg-0.3
2.15.1+dfsg-0.4
2.15.1+dfsg-0.5
2.15.1+dfsg-1
2.15.1+dfsg-2

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-0992.json"