UBUNTU-CVE-2026-41051

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Source
https://ubuntu.com/security/CVE-2026-41051
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-41051.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2026-41051
Upstream
  • CVE-2026-41051
Published
2026-05-13T13:01:00Z
Modified
2026-05-20T22:03:00Z
Severity
  • 5.0 (Medium) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:H CVSS Calculator
  • 5.1 (Medium) CVSS_V4 - CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N CVSS Calculator
  • Ubuntu - medium
Summary
[none]
Details

csync2 uses insecure temporary directories when compiled with C99 or later, allowing for TOCTOU style attacks on the temporary directories.

References

Affected packages

Ubuntu:16.04:LTS
csync2

Package

Name
csync2
Purl
pkg:deb/ubuntu/csync2?arch=source&distro=xenial

Affected ranges

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

Affected versions

2.*
2.0+73d3293-2
2.0+73d3293-2build1
2.0+73d3293-2build2

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "csync2",
            "binary_version": "2.0+73d3293-2build2"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-41051.json"
Ubuntu:18.04:LTS
csync2

Package

Name
csync2
Purl
pkg:deb/ubuntu/csync2?arch=source&distro=bionic

Affected ranges

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

Affected versions

2.*
2.0-8-g175a01c-4ubuntu1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "csync2",
            "binary_version": "2.0-8-g175a01c-4ubuntu1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-41051.json"
Ubuntu:20.04:LTS
csync2

Package

Name
csync2
Purl
pkg:deb/ubuntu/csync2?arch=source&distro=focal

Affected ranges

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

Affected versions

2.*
2.0-8-g175a01c-4ubuntu2
2.0-22-gce67c55-1ubuntu1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "csync2",
            "binary_version": "2.0-22-gce67c55-1ubuntu1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-41051.json"
Ubuntu:22.04:LTS
csync2

Package

Name
csync2
Purl
pkg:deb/ubuntu/csync2?arch=source&distro=jammy

Affected ranges

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

Affected versions

2.*
2.0-25-gc0faaf9-1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "csync2",
            "binary_version": "2.0-25-gc0faaf9-1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-41051.json"
Ubuntu:24.04:LTS
csync2

Package

Name
csync2
Purl
pkg:deb/ubuntu/csync2?arch=source&distro=noble

Affected ranges

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

Affected versions

2.*
2.0-42-g83b3644-2
2.0-42-g83b3644-2build1
2.0-42-g83b3644-2build2
2.0-42-g83b3644-2build3

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "csync2",
            "binary_version": "2.0-42-g83b3644-2build3"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-41051.json"
Ubuntu:25.10
csync2

Package

Name
csync2
Purl
pkg:deb/ubuntu/csync2?arch=source&distro=questing

Affected ranges

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

Affected versions

2.*
2.0-42-g83b3644-2build3
2.0-42-g83b3644-3

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "csync2",
            "binary_version": "2.0-42-g83b3644-3"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-41051.json"
Ubuntu:26.04:LTS
csync2

Package

Name
csync2
Purl
pkg:deb/ubuntu/csync2?arch=source&distro=resolute

Affected ranges

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

Affected versions

2.*
2.0-42-g83b3644-3
2.0-42-g83b3644-3build1
2.0-42-g83b3644-4

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "csync2",
            "binary_version": "2.0-42-g83b3644-4"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-41051.json"