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CRITICAL

CVE-2020-13388

CVSS v3

9.8

CRITICAL

EPSS Score

4.5 %

exploit probability, as of 2026-10-19

CISA KEV

No

known exploited

Exploitation

—

SSVC status

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Affected and fixed versions

Packages from OSV.dev and products from the vendors' CSAF advisories.

version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.

Packages

  • jw-utilPyPIall versions · fixed in 2.3

Full record on NVD

Description

An exploitable vulnerability exists in the configuration-loading functionality of the jw.util package before 2.3 for Python. When loading a configuration with FromString or FromStream with YAML, one can execute arbitrary Python code, resulting in OS command execution, because safe_load is not used.

Technical details

Published
2020-05-22

Frequently asked questions

What is CVE-2020-13388?

An exploitable vulnerability exists in the configuration-loading functionality of the jw.util package before 2.3 for Python. When loading a configuration with FromString or FromStream with YAML, one can execute arbitrary Python code, resulting in OS command execution, because safe_load is not used.

Is CVE-2020-13388 actively exploited?

Active exploitation of CVE-2020-13388 has not been confirmed. Its EPSS score was 4.5% on 2026-10-19, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2020-13388?

CVE-2020-13388 has a CVSS v3 base score of 9.8 (CRITICAL severity).

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