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PyYAML: incomplete fix for CVE-2020-1747

🗓️ 16 Nov 2021 15:43:05Reported by RedHatType 
redhat
 redhat🔗 access.redhat.com👁 4 Views

PyYAML remains vulnerable to code execution from untrusted YAML via full_load or FullLoader CVE-2020-1747.

Related
Packages
Refs
ReporterTitlePublishedViews
Family
ALT Linux		Security fix for the ALT Linux 9 package python-module-yaml version 5.4.1-alt0.p9
22 Mar 202100:00
–altlinux
IBM Security Bulletins		Security Bulletin: Critical Vulnerabilities in libraries used by libraries that IBM Spectrum discover is using (libraries of libraries)
28 Mar 202216:33
–ibm
IBM Security Bulletins		Security Bulletin: IBM Cloud Pak for Security includes components with multiple known vulnerabilities
12 Jan 202317:19
–ibm
IBM Security Bulletins		Security Bulletin: Vulnerability in PyYAML affects IBM Cloud Pak for Data System 2.0 (CPDS 2.0) [CVE-2020-14343]
11 Mar 202412:51
–ibm
IBM Security Bulletins		Security Bulletin: IBM Cloud Pak for Network Automation 2.6.4 fixes multiple security vulnerabilities
15 Dec 202314:31
–ibm
IBM Security Bulletins		Security Bulletin: Vulnerability in PyYAML affects IBM Spectrum Protect Plus Container and Microsoft File Systems Agents (CVE-2020-1747)
4 Dec 202006:02
–ibm
IBM Security Bulletins		Security Bulletin: Multiple Vulnerabilities in IBM Concert Software.
18 Aug 202504:31
–ibm
IBM Security Bulletins		Security Bulletin: Cloud Pak for Security contains packages that have multiple vulnerabilities
1 Apr 202216:38
–ibm
IBM Security Bulletins		Security Bulletin: Vulnerability in PyYAML affects IBM Cloud Pak for Data System 1.0(CPDS 1.0)[CVE-2020-14343]
26 Apr 202520:00
–ibm
IBM Security Bulletins		Security Bulletin: IBM Cognos Analytics has addressed multiple vulnerabilities
9 Oct 202020:01
–ibm
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OSOS VersionArchitecturePackagePackage VersionFilename
Red Hat Enterprise Linux7x86_64python3-pyyaml5.4.1-1.el7pcpython3-pyyaml-5.4.1-1.el7pc.x86_64.rpm

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28 Jun 2026 12:10Current
7.7High risk
Vulners AI Score7.7
CVSS 3.19.8
CVSS 210
EPSS0.05984
CWE-20
yaml libraryuntrusted inputcode executionfull loadfull loadercve 2020 1747
4