CVE-2026-47781

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.

Overview

State: PUBLISHED
Assigner (CNA): GitHub_M
CVSS severity: HIGH
CVSS score: 8.4 / 10
CVSS vector: 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
Effective score: 8.4 / 10 HIGH source: CNA overview
CWE(s): CWE-829, CWE-94
Reserved: 2026-05-19
Published: 2026-08-04 18:42 UTC
Last updated: 2026-08-04 18:42 UTC
Source: https://raw.githubusercontent.com/CVEProject/cvelistV5/main/cves/2026/47xxx/CVE-2026-47781.json
Linked Threat: CVE-2026-47781 — pdm: Project-Controlled `.pdm-plugins` Content Executes Before CLI Parsing

Affected products (1)

Vendor	Product	Versions	Platforms
pdm-project	pdm	`< 2.27.0` (affected)	—

Vendor references (2)

References embedded in the original CVE record by the assigning CNA.

https://github.com/pdm-project/pdm/security/advisories/GHSA-qq6c-99pv-prvf x_refsource_CONFIRM
https://github.com/pdm-project/pdm/releases/tag/2.27.0 x_refsource_MISC

Web references (0)

DuckDuckGo results ranked by threat-intel / vendor advisory domains. Generated by the 🔎 Find references (web) button above — same flow as the Remediations search.

No web references attached yet.

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Raw JSON

The full cvelistV5 record. Download as CVE-2026-47781.json.

{
  "containers": {
    "cna": {
      "affected": [
        {
          "product": "pdm",
          "vendor": "pdm-project",
          "versions": [
            {
              "status": "affected",
              "version": "< 2.27.0"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "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."
        }
      ],
      "metrics": [
        {
          "cvssV4_0": {
            "attackComplexity": "LOW",
            "attackRequirements": "NONE",
            "attackVector": "LOCAL",
            "baseScore": 8.4,
            "baseSeverity": "HIGH",
            "privilegesRequired": "NONE",
            "subAvailabilityImpact": "NONE",
            "subConfidentialityImpact": "NONE",
            "subIntegrityImpact": "NONE",
            "userInteraction": "ACTIVE",
            "vectorString": "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",
            "version": "4.0",
            "vulnAvailabilityImpact": "HIGH",
            "vulnConfidentialityImpact": "HIGH",
            "vulnIntegrityImpact": "HIGH"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-829",
              "description": "CWE-829: Inclusion of Functionality from Untrusted Control Sphere",
              "lang": "en",
              "type": "CWE"
            }
          ]
        },
        {
          "descriptions": [
            {
              "cweId": "CWE-94",
              "description": "CWE-94: Improper Control of Generation of Code ('Code Injection')",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-08-04T18:42:23.036Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "name": "https://github.com/pdm-project/pdm/security/advisories/GHSA-qq6c-99pv-prvf",
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/pdm-project/pdm/security/advisories/GHSA-qq6c-99pv-prvf"
        },
        {
          "name": "https://github.com/pdm-project/pdm/releases/tag/2.27.0",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/pdm-project/pdm/releases/tag/2.27.0"
        }
      ],
      "source": {
        "advisory": "GHSA-qq6c-99pv-prvf",
        "discovery": "UNKNOWN"
      },
      "title": "pdm: Project-Controlled `.pdm-plugins` Content Executes Before CLI Parsing"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2026-47781",
    "datePublished": "2026-08-04T18:42:23.036Z",
    "dateReserved": "2026-05-19T22:36:16.883Z",
    "dateUpdated": "2026-08-04T18:42:23.036Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}