CVE-2024-40647 MEDIUM

CVE-2024-40647: Unintentional exposure of environment variables to subprocesses in sentry-sdk

Vendor Getsentry
Product sentry-python
Weakness CWE-200 · Info exposure
Published July 18, 2024
Last update June 1, 2026

CVSS base score

5.3/10
Attack vector Local
Attack complexity High
Privileges required High
User interaction None
Confidentiality High
Integrity None

CVSS vector

CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:N/A:N

What the vulnerability does

01Description

sentry-sdk is the official Python SDK for Sentry.io. A bug in Sentry's Python SDK < 2.8.0 allows the environment variables to be passed to subprocesses despite the `env={}` setting. In Python's `subprocess` calls, all environment variables are passed to subprocesses by default. However, if you specifically do not want them to be passed to subprocesses, you may use `env` argument in `subprocess` calls. Due to the bug in Sentry SDK, with the Stdlib integration enabled (which is enabled by default), this expectation is not fulfilled, and all environment variables are being passed to subprocesses instead. The issue has been patched in pull request #3251 and is included in sentry-sdk==2.8.0. We strongly recommend upgrading to the latest SDK version. However, if it's not possible, and if passing environment variables to child processes poses a security risk for you, you can disable all default integrations.

Key dates

02Disclosure timeline

July 18, 2024 CVE published
June 1, 2026 Record updated