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Vulnerabilities

Vulnerability · CVE-2020-15801

In Python 3.8.4, sys.path restrictions specified in a python38._pth file are ignored, allowing code to be loaded from arbitrary locations.

Published Jul 17, 2020 · catalog updated Oct 14, 2026 · In Python 3.8.4, sys.path

Check if you run it

No confirmed exploitation is on record for CVE-2020-15801. EPSS is 3.63%. Act only if a listed version of In Python 3.8.4, sys.path is installed.

Gaps on this record

  • The stored product name is a package slug. The name on this page is taken from the title (In Python 3.8.4, sys.path).
  • No version range is stored. A customer cannot check an installed version against this record.
  • No vendor fix or required action is stored. Compare the linked advisory before you change production.
Severity
Critical9.8
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
3.63%
Remediation
Advisory link
Affected products
cpe netapp/max data · cpe python/python

In Python 3.8.4, sys.path restrictions specified in a python38._pth file are ignored, allowing code to be loaded from arbitrary locations. The ._pth file (e.g., the python._pth file) is not affected.

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • cpe netapp/max dataversion unspecified
  • cpe python/pythonversion unspecified

How to fix CVE-2020-15801

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

No confirmed exploitation is on record for CVE-2020-15801. EPSS is 3.63%. Act only if a listed version of In Python 3.8.4, sys.path is installed.

Which versions are affected?

Affected version ranges are not on this record. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

CWE-426: Untrusted Search Path. EPSS 3.63%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Code

The project this record applies to. Exploit listings stay in References.

Timeline

Detection, updates, and resolution for this record.

  1. Jul 17, 2020 · NIST NVD

    Detected

    In Python 3.8.4, sys.path restrictions specified in a python38._pth file are ignored, allowing code to be loaded from arbitrary locations. The ._pth file (e.g., the python._pth file) is not affected.

  2. Oct 14, 2026 · NIST NVD

    Updated

    In Python 3.8.4, sys.path restrictions specified in a python38._pth file are ignored, allowing code to be loaded from arbitrary locations. The ._pth file (e.g., the python._pth file) is not affected.

Sources

  • CVE.orgVulnerability recordCVE-2020-15801

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2020-15801

    30-day exploitation probability 3.6%

    first.org
  • NIST NVDVulnerability recordCVE-2020-15801

    In Python 3.8.4, sys.path restrictions specified in a python38._pth file are ignored, allowing code to be loaded from arbitrary locations. The ._pth file (e.g., the python._pth file) is not affected.

    nvd.nist.gov

References

Freshness

Last verified in this catalog Oct 16, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.