CVE-2026-47781 pdm: Project-Controlled `.pdm-plugins` Content Executes Before CLI Parsing
Attackers can execute arbitrary Python code via malicious project-local plugins in untrusted repositories, affecting developers and CI systems using PDM.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- A user has to click or open something
- Fix
- Available
What is CVE-2026-47781?
CVE-2026-47781 is a high-severity code injection vulnerability in pdm-project pdm, published on 4 Aug 2026. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.
Official description
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.
Which versions are affected by CVE-2026-47781?
3 open source packages ship an affected version, including pdm.
| Package | Affected | Fixed in |
|---|---|---|
pdm PyPI | All versions | 2.27.0 |
pdm PyPI | All versions | 2.27.0 |
pdm PyPI | All versions | 2.27.0 |
How do I fix CVE-2026-47781?
Upgrade pdm to 2.27.0 or later.
Upgrade, and never evaluate templates, expressions or code built from user input. More about Code injection.
Is CVE-2026-47781 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-47781 exists.
Sources
Also known as DEBIAN-CVE-2026-47781, GHSA-qq6c-99pv-prvf, PYSEC-2026-2863, UBUNTU-CVE-2026-47781.