PyPI package
pyyaml
pkg:pypi/pyyaml
Vulnerabilities (4)
| CVE | Sev | CVSS | KEV | Affected versions | Fixed in | Published | Description |
|---|---|---|---|---|---|---|---|
| CVE-2020-14343 | — | < 5.4 | 5.4 | Feb 9, 2021 | A vulnerability was discovered in the PyYAML library in versions before 5.4, where it is susceptible to arbitrary code execution when it processes untrusted YAML files through the full_load method or with the FullLoader loader. Applications that use the library to process untrust | ||
| CVE-2020-1747 | — | >= 5.1b7, < 5.3.1 | 5.3.1 | Mar 24, 2020 | A vulnerability was discovered in the PyYAML library in versions before 5.3.1, where it is susceptible to arbitrary code execution when it processes untrusted YAML files through the full_load method or with the FullLoader loader. Applications that use the library to process untru | ||
| CVE-2019-20477 | — | >= 5.1, < 5.2 | 5.2 | Feb 19, 2020 | PyYAML 5.1 through 5.1.2 has insufficient restrictions on the load and load_all functions because of a class deserialization issue, e.g., Popen is a class in the subprocess module. NOTE: this issue exists because of an incomplete fix for CVE-2017-18342. | ||
| CVE-2017-18342 | Cri | 9.8 | < 4.1 | 4.1 | Jun 27, 2018 | In PyYAML before 5.1, the yaml.load() API could execute arbitrary code if used with untrusted data. The load() function has been deprecated in version 5.1 and the 'UnsafeLoader' has been introduced for backward compatibility with the function. |
- CVE-2020-14343Feb 9, 2021affected < 5.4fixed 5.4
A vulnerability was discovered in the PyYAML library in versions before 5.4, where it is susceptible to arbitrary code execution when it processes untrusted YAML files through the full_load method or with the FullLoader loader. Applications that use the library to process untrust
- CVE-2020-1747Mar 24, 2020affected >= 5.1b7, < 5.3.1fixed 5.3.1
A vulnerability was discovered in the PyYAML library in versions before 5.3.1, where it is susceptible to arbitrary code execution when it processes untrusted YAML files through the full_load method or with the FullLoader loader. Applications that use the library to process untru
- CVE-2019-20477Feb 19, 2020affected >= 5.1, < 5.2fixed 5.2
PyYAML 5.1 through 5.1.2 has insufficient restrictions on the load and load_all functions because of a class deserialization issue, e.g., Popen is a class in the subprocess module. NOTE: this issue exists because of an incomplete fix for CVE-2017-18342.
- affected < 4.1fixed 4.1
In PyYAML before 5.1, the yaml.load() API could execute arbitrary code if used with untrusted data. The load() function has been deprecated in version 5.1 and the 'UnsafeLoader' has been introduced for backward compatibility with the function.