CLSA-2026-1781181291

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Import Source
https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu20.04els/CLSA-2026-1781181291.json
JSON Data
https://api.osv.dev/v1/vulns/CLSA-2026-1781181291
Upstream
Published
2026-06-11T12:35:13Z
Modified
2026-10-26T09:32:05Z
Summary
Fix CVE(s): CVE-2026-4408
Details
  • SECURITY UPDATE: shell injection in "check password script" via %u substitution. Samba did not sanitize or quote the username before substituting it into the configured check password script, allowing crafted usernames containing shell metacharacters to inject arbitrary commands executed by smbd.
    • debian/patches/CVE-2026-4408.patch
    • CVE-2026-4408
References

Affected packages

TuxCare:Ubuntu:20.04
ctdb

Package

Name
ctdb
Purl
pkg:deb/tuxcare/ctdb?distro=ubuntu-20.04

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
2:4.15.13+dfsg-0ubuntu0.20.04.8+tuxcare.els3

Database specific

source 
"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu20.04els/CLSA-2026-1781181291.json"
libnss-winbind

Package

Name
libnss-winbind
Purl
pkg:deb/tuxcare/libnss-winbind?distro=ubuntu-20.04

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
2:4.15.13+dfsg-0ubuntu0.20.04.8+tuxcare.els3

Database specific

source 
"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu20.04els/CLSA-2026-1781181291.json"
libpam-winbind

Package

Name
libpam-winbind
Purl
pkg:deb/tuxcare/libpam-winbind?distro=ubuntu-20.04

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
2:4.15.13+dfsg-0ubuntu0.20.04.8+tuxcare.els3

Database specific

source 
"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu20.04els/CLSA-2026-1781181291.json"
libsmbclient

Package

Name
libsmbclient
Purl
pkg:deb/tuxcare/libsmbclient?distro=ubuntu-20.04

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
2:4.15.13+dfsg-0ubuntu0.20.04.8+tuxcare.els3

Database specific

source 
"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu20.04els/CLSA-2026-1781181291.json"
libsmbclient-dev

Package

Name
libsmbclient-dev
Purl
pkg:deb/tuxcare/libsmbclient-dev?distro=ubuntu-20.04

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
2:4.15.13+dfsg-0ubuntu0.20.04.8+tuxcare.els3

Database specific

source 
"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu20.04els/CLSA-2026-1781181291.json"
libwbclient-dev

Package

Name
libwbclient-dev
Purl
pkg:deb/tuxcare/libwbclient-dev?distro=ubuntu-20.04

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
2:4.15.13+dfsg-0ubuntu0.20.04.8+tuxcare.els3

Database specific

source 
"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu20.04els/CLSA-2026-1781181291.json"
libwbclient0

Package

Name
libwbclient0
Purl
pkg:deb/tuxcare/libwbclient0?distro=ubuntu-20.04

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
2:4.15.13+dfsg-0ubuntu0.20.04.8+tuxcare.els3

Database specific

source 
"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu20.04els/CLSA-2026-1781181291.json"
python3-samba

Package

Name
python3-samba
Purl
pkg:deb/tuxcare/python3-samba?distro=ubuntu-20.04

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
2:4.15.13+dfsg-0ubuntu0.20.04.8+tuxcare.els3

Database specific

source 
"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu20.04els/CLSA-2026-1781181291.json"
registry-tools

Package

Name
registry-tools
Purl
pkg:deb/tuxcare/registry-tools?distro=ubuntu-20.04

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
2:4.15.13+dfsg-0ubuntu0.20.04.8+tuxcare.els3

Database specific

source 
"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu20.04els/CLSA-2026-1781181291.json"
samba

Package

Name
samba
Purl
pkg:deb/tuxcare/samba?distro=ubuntu-20.04

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
2:4.15.13+dfsg-0ubuntu0.20.04.8+tuxcare.els3

Database specific

source 
"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu20.04els/CLSA-2026-1781181291.json"
samba-common

Package

Name
samba-common
Purl
pkg:deb/tuxcare/samba-common?distro=ubuntu-20.04

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
2:4.15.13+dfsg-0ubuntu0.20.04.8+tuxcare.els3

Database specific

source 
"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu20.04els/CLSA-2026-1781181291.json"
samba-common-bin

Package

Name
samba-common-bin
Purl
pkg:deb/tuxcare/samba-common-bin?distro=ubuntu-20.04

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
2:4.15.13+dfsg-0ubuntu0.20.04.8+tuxcare.els3

Database specific

source 
"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu20.04els/CLSA-2026-1781181291.json"
samba-dev

Package

Name
samba-dev
Purl
pkg:deb/tuxcare/samba-dev?distro=ubuntu-20.04

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
2:4.15.13+dfsg-0ubuntu0.20.04.8+tuxcare.els3

Database specific

source 
"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu20.04els/CLSA-2026-1781181291.json"
samba-dsdb-modules

Package

Name
samba-dsdb-modules
Purl
pkg:deb/tuxcare/samba-dsdb-modules?distro=ubuntu-20.04

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
2:4.15.13+dfsg-0ubuntu0.20.04.8+tuxcare.els3

Database specific

source 
"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu20.04els/CLSA-2026-1781181291.json"
samba-libs

Package

Name
samba-libs
Purl
pkg:deb/tuxcare/samba-libs?distro=ubuntu-20.04

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
2:4.15.13+dfsg-0ubuntu0.20.04.8+tuxcare.els3

Database specific

source 
"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu20.04els/CLSA-2026-1781181291.json"
samba-testsuite

Package

Name
samba-testsuite
Purl
pkg:deb/tuxcare/samba-testsuite?distro=ubuntu-20.04

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
2:4.15.13+dfsg-0ubuntu0.20.04.8+tuxcare.els3

Database specific

source 
"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu20.04els/CLSA-2026-1781181291.json"
samba-vfs-modules

Package

Name
samba-vfs-modules
Purl
pkg:deb/tuxcare/samba-vfs-modules?distro=ubuntu-20.04

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
2:4.15.13+dfsg-0ubuntu0.20.04.8+tuxcare.els3

Database specific

source 
"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu20.04els/CLSA-2026-1781181291.json"
smbclient

Package

Name
smbclient
Purl
pkg:deb/tuxcare/smbclient?distro=ubuntu-20.04

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
2:4.15.13+dfsg-0ubuntu0.20.04.8+tuxcare.els3

Database specific

source 
"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu20.04els/CLSA-2026-1781181291.json"
winbind

Package

Name
winbind
Purl
pkg:deb/tuxcare/winbind?distro=ubuntu-20.04

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
2:4.15.13+dfsg-0ubuntu0.20.04.8+tuxcare.els3

Database specific

source 
"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu20.04els/CLSA-2026-1781181291.json"