pdm: Project-Controlled `.pdm-plugins` Content Executes Before CLI Parsing (CVE-2026-47781) | HOL Guard CVE

High · CVSS 8.4CVE-2026-47781GHSA-QQ6C-99PV-PRVF

pdm: Project-Controlled `.pdm-plugins` Content Executes Before CLI Parsing

Answer in brief

CVE-2026-47781 records a High severity (CVSS 8.4) vulnerability in pdm: Project-Controlled `.pdm-plugins` Content Executes Before CLI Parsing. The current sources do not mark it as known exploited. The current feed maps pdm-project/pdm (generic), pdm (pip). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Aug 4, 2026Updated Sep 8, 2026Source checked Sep 17, 2026First seen by HOL Jun 11, 2026Material review Sep 8, 2026

Upstream Advisory

Key facts

Risk: High · CVSS 8.4
Exploitation: Not marked as known exploited
Affected software: 2 mapped packages or products
Fix availability: Available

Why this deserves its current priority

CVSS is 8.4. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps pdm-project/pdm (generic), pdm (pip). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
Package	Affected range	Fixed version
pdm-project/pdmgeneric	< 2.27.0	Not reported
pdmpip	<=2.26.9	2.27.0

Recommended response

Check inventory. Check lockfiles and deployed manifests for pdm-project/pdm, pdm.
Review the reported fix. Update pdm to 2.27.0 if you use the affected versions. Test the change in a non-production environment first.

Evidence timeline and material changes

Published upstream
Aug 4, 2026
Evidence: source:cvelist:source_dates:source-dates:record
Source modified
Sep 8, 2026
Evidence: source:cvelist:source_dates:source-dates:record
First seen by HOL
Jun 11, 2026

Sources and claim methodology

Upstream source 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.

Quoted source text, attributed separately from HOL analysis.