CLSA-2026-1789744484

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Import Source
https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu18.04els/CLSA-2026-1789744484.json
JSON Data
https://api.osv.dev/v1/vulns/CLSA-2026-1789744484
Upstream
Published
2026-09-18T15:14:56Z
Modified
2026-10-26T09:32:03Z
Summary
Fix CVE(s): CVE-2026-86138
Details
  • SECURITY UPDATE: heap buffer overflow in the XML dictionary QName interning path
    • debian/patches/CVE-2026-86138.patch: Add integer overflow checks to the pool size calculation in xmlDictAddQString() in dict.c, and cap the prefix and name lengths in xmlDictQLookup() so the sum namelen + plen + 1 cannot wrap and undersize the pool allocation
    • CVE-2026-86138
References

Affected packages

TuxCare:Ubuntu:18.04
libxml2

Package

Name
libxml2
Purl
pkg:deb/tuxcare/libxml2?distro=ubuntu-18.04

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
2.9.4+dfsg1-6.1ubuntu1.9+tuxcare.els11

Database specific

source 
"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu18.04els/CLSA-2026-1789744484.json"
libxml2-dev

Package

Name
libxml2-dev
Purl
pkg:deb/tuxcare/libxml2-dev?distro=ubuntu-18.04

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
2.9.4+dfsg1-6.1ubuntu1.9+tuxcare.els11

Database specific

source 
"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu18.04els/CLSA-2026-1789744484.json"
libxml2-doc

Package

Name
libxml2-doc
Purl
pkg:deb/tuxcare/libxml2-doc?distro=ubuntu-18.04

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
2.9.4+dfsg1-6.1ubuntu1.9+tuxcare.els11

Database specific

source 
"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu18.04els/CLSA-2026-1789744484.json"
libxml2-utils

Package

Name
libxml2-utils
Purl
pkg:deb/tuxcare/libxml2-utils?distro=ubuntu-18.04

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
2.9.4+dfsg1-6.1ubuntu1.9+tuxcare.els11

Database specific

source 
"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu18.04els/CLSA-2026-1789744484.json"
python-libxml2

Package

Name
python-libxml2
Purl
pkg:deb/tuxcare/python-libxml2?distro=ubuntu-18.04

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
2.9.4+dfsg1-6.1ubuntu1.9+tuxcare.els11

Database specific

source 
"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu18.04els/CLSA-2026-1789744484.json"
python3-libxml2

Package

Name
python3-libxml2
Purl
pkg:deb/tuxcare/python3-libxml2?distro=ubuntu-18.04

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
2.9.4+dfsg1-6.1ubuntu1.9+tuxcare.els11

Database specific

source 
"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu18.04els/CLSA-2026-1789744484.json"