UBUNTU-CVE-2026-47781

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Source
https://ubuntu.com/security/CVE-2026-47781
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-47781.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2026-47781
Upstream
Published
2026-08-04T19:16:00Z
Modified
2026-08-06T03:09:39.847095951Z
Severity
  • 8.4 (High) CVSS_V4 - CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N CVSS Calculator
  • Ubuntu - medium
Summary
[none]
Details

PDM is a Python package and dependency manager. In versions up to and including 2.26.9, PDM automatically loads project-local plugins from a .pdm-plugins directory during initialization, allowing an attacker-controlled file in an untrusted repository checkout to execute arbitrary Python code before any command is parsed. This happens because load_plugins() runs during Core.init() and adds .pdm-plugins via site.addsitedir(), which processes .pth files and immediately executes any line beginning with import, so the code runs with the privileges of the user invoking pdm and even a benign command such as pdm --version triggers it (making the impact strongest in CI, automation, and privileged contexts). The issue is fixed in version 2.27.0.

References

Affected packages

Ubuntu:26.04:LTS / pdm

Package

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

Affected ranges

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

Affected versions

2.*
2.20.1+ds1-2
2.23.1-4

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "python3-pdm",
            "binary_version": "2.23.1-4"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-47781.json"