UBUNTU-CVE-2026-55830

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Source
https://ubuntu.com/security/CVE-2026-55830
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-55830.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2026-55830
Upstream
Published
2026-07-08T22:17:00Z
Modified
2026-09-24T02:00:30Z
Severity
  • 8.3 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:H/I:H/A:L CVSS Calculator
  • Ubuntu - medium
Summary
[none]
Details

RestrictedPython is a tool that helps to define a subset of the Python language which allows to provide a program input into a trusted environment. Prior to 8.3, check_function_argument_names() rejected protected guard hook names for regular, variadic, and keyword-only arguments but omitted positional-only arguments, allowing getattr, getitem, write, or print to be shadowed by a local parameter and bypass the embedding application's access policy. This issue is fixed in version 8.3.

References

Affected packages

Ubuntu:16.04:LTS
restrictedpython

Package

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

Affected ranges

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

Affected versions

3.*
3.6.0-0ubuntu4

Ecosystem specific 

{
    "binaries":  [
        {
            "binary_name":  "python-restrictedpython",
            "binary_version":  "3.6.0-0ubuntu4"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-55830.json"
Ubuntu:18.04:LTS
restrictedpython

Package

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

Affected ranges

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

Affected versions

3.*
3.6.0-0ubuntu4

Ecosystem specific 

{
    "binaries":  [
        {
            "binary_name":  "python-restrictedpython",
            "binary_version":  "3.6.0-0ubuntu4"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-55830.json"
Ubuntu:26.04:LTS
restrictedpython

Package

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

Affected ranges

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

Affected versions

8.*
8.0-1
8.1-1

Ecosystem specific 

{
    "binaries":  [
        {
            "binary_name":  "python3-restrictedpython",
            "binary_version":  "8.1-1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-55830.json"
Ubuntu:Pro:20.04:LTS
restrictedpython

Package

Name
restrictedpython
Purl
pkg:deb/ubuntu/restrictedpython?arch=source&distro=esm-apps%2Ffocal

Affected ranges

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

Affected versions

4.*
4.0~b3-2
4.0~b3-2ubuntu0.1~esm1

Ecosystem specific 

{
    "binaries":  [
        {
            "binary_name":  "python3-restrictedpython",
            "binary_version":  "4.0~b3-2ubuntu0.1~esm1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-55830.json"
Ubuntu:Pro:22.04:LTS
restrictedpython

Package

Name
restrictedpython
Purl
pkg:deb/ubuntu/restrictedpython?arch=source&distro=esm-apps%2Fjammy

Affected ranges

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

Affected versions

4.*
4.0~b3-2
4.0~b3-2ubuntu1
4.0~b3-3
4.0~b3-3ubuntu0.1~esm1

Ecosystem specific 

{
    "binaries":  [
        {
            "binary_name":  "python3-restrictedpython",
            "binary_version":  "4.0~b3-3ubuntu0.1~esm1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-55830.json"
Ubuntu:Pro:24.04:LTS
restrictedpython

Package

Name
restrictedpython
Purl
pkg:deb/ubuntu/restrictedpython?arch=source&distro=esm-apps%2Fnoble

Affected ranges

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

Affected versions

4.*
4.0~b3-3
6.*
6.2-1
6.2-1ubuntu0.24.04.1~esm1

Ecosystem specific 

{
    "binaries":  [
        {
            "binary_name":  "python3-restrictedpython",
            "binary_version":  "6.2-1ubuntu0.24.04.1~esm1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-55830.json"