CVE-2021-3426

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Source
https://nvd.nist.gov/vuln/detail/CVE-2021-3426
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2021-3426.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2021-3426
Aliases
Downstream
Related
Published
2021-05-20T13:15:07Z
Modified
2025-08-11T14:44:38.308149Z
Severity
  • 5.7 (Medium) CVSS_V3 - CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N CVSS Calculator
Summary
[none]
Details

There's a flaw in Python 3's pydoc. A local or adjacent attacker who discovers or is able to convince another local or adjacent user to start a pydoc server could access the server and use it to disclose sensitive information belonging to the other user that they would not normally be able to access. The highest risk of this flaw is to data confidentiality. This flaw affects Python versions before 3.8.9, Python versions before 3.9.3 and Python versions before 3.10.0a7.

References

Affected packages

Git / github.com/python/cpython

Affected ranges

Type
GIT
Repo
https://github.com/python/cpython
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
8d21aa21f2cbc6d50aab3f420bb23be1d081dac4