DEBIAN-CVE-2026-123202

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Source
https://security-tracker.debian.org/tracker/CVE-2026-123202
Import Source
https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-123202.json
JSON Data
https://api.osv.dev/v1/vulns/DEBIAN-CVE-2026-123202
Upstream
Published
2026-11-05T19:17:19Z
Modified
2026-11-06T18:00:06Z
Severity
  • 7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
Summary
[none]
Details

libnxml before 0.18.6 contains a stack-based buffer overflow vulnerability in src/nxml_parser.c that allows remote attackers to write past a 1024-byte stack buffer via long XML names. Attackers can supply XML or RSS feeds with a 1022-character element, attribute, DOCTYPE or entity name ending in a multi-byte UTF-8 character to crash parsing applications.

References

Affected packages

Debian:12 / libnxml

Package

Name
libnxml
Purl
pkg:deb/debian/libnxml?arch=source&distro=bookworm

Affected ranges

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

Affected versions

0.*
0.18.4-1
0.18.4-2
0.18.4-2.1~exp1
0.18.4-2.1
0.18.5-1
0.18.5-2

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-123202.json"

Debian:13 / libnxml

Package

Name
libnxml
Purl
pkg:deb/debian/libnxml?arch=source&distro=trixie

Affected ranges

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

Affected versions

0.*
0.18.5-1
0.18.5-2

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-123202.json"

Debian:14 / libnxml

Package

Name
libnxml
Purl
pkg:deb/debian/libnxml?arch=source&distro=forky

Affected ranges

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

Affected versions

0.*
0.18.5-1
0.18.5-2

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-123202.json"