Unintentional exposure of environment variables to subprocesses in sentry-sdk

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Summary

CVECVE-2024-40647
StatePUBLISHED
AssignerGitHub_M
Source PriorityCVE Program / NVD first with legacy fallback
Published2024-07-18 17:15:05 UTC
Updated2026-06-01 08:16:17 UTC
Descriptionsentry-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.

Risk And Classification

Primary CVSS: v3.1 5.3 MEDIUM from [email protected]

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

EPSS: 0.000280000 probability, percentile 0.085620000 (date 2026-06-02)

Problem Types: CWE-200 | CWE-200 CWE-200: Exposure of Sensitive Information to an Unauthorized Actor

VersionSourceTypeScoreSeverityVector
3.1[email protected]Secondary5.3MEDIUMCVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:N/A:N
3.1CNADECLARED5.3MEDIUMCVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:N/A:N

CVSS v3.1 Breakdown

Attack Vector
Local
Attack Complexity
High
Privileges Required
High
User Interaction
None
Scope
Changed
Confidentiality
High
Integrity
None
Availability
None

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

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Getsentry Sentry-python affected < 2.8.0 Not specified

References

ReferenceSourceLinkTags
github.com/getsentry/sentry-python/releases/tag/2.8.0 af854a3a-2127-422b-91ae-364da2661108 github.com
github.com/getsentry/sentry-python/security/advisories/GHSA-g92j-qhmh-64v2 af854a3a-2127-422b-91ae-364da2661108 github.com
lists.debian.org/debian-lts-announce/2026/06/msg00001.html af854a3a-2127-422b-91ae-364da2661108 lists.debian.org
docs.sentry.io/platforms/python/integrations/default-integrations af854a3a-2127-422b-91ae-364da2661108 docs.sentry.io
github.com/getsentry/sentry-python/commit/763e40aa4cb57ecced467f48f78f33... af854a3a-2127-422b-91ae-364da2661108 github.com
docs.sentry.io/platforms/python/integrations/default-integrations af854a3a-2127-422b-91ae-364da2661108 docs.sentry.io
docs.python.org/3/library/subprocess.html af854a3a-2127-422b-91ae-364da2661108 docs.python.org
github.com/getsentry/sentry-python/pull/3251 af854a3a-2127-422b-91ae-364da2661108 github.com
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