Unsafe deserialization in owlmixin
An exploitable vulnerability exists in the YAML loading functionality of util.py in OwlMixin before 2.0.0a12. A "Load YAML" string or file (aka load_yaml or load_yamlf) can execute arbitrary Python commands resulting in command execution because load is used where safe_load should have been used. An attacker can insert Python into loaded YAML to trigger this vulnerability.
Affected software
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| Platform | Package | Vulnerable versions | Fixed in |
|---|---|---|---|
| Python (PyPI) | owlmixin | < 2.0.0 | 2.0.0 |
References
- https://github.com/tadashi-aikawa/owlmixin/issues/12
- https://github.com/tadashi-aikawa/owlmixin/commit/5d0575303f6df869a515ced4285f24ba721e0d4e
- https://joel-malwarebenchmark.github.io/blog/2017/11/08/cve-2017-16618-convert-through-owlmixin/
- https://github.com/advisories/GHSA-ccmq-qvcp-5mrm
- https://nvd.nist.gov/vuln/detail/CVE-2017-16618
- https://github.com/pypa/advisory-database/tree/main/vulns/owlmixin/PYSEC-2017-22.yaml
- https://github.com/tadashi-aikawa/owlmixin
- https://joel-malwarebenchmark.github.io/blog/2017/11/08/cve-2017-16618-convert-through-owlmixin
- CVSS vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H- Weakness (CWE)
CWE-502- Platform
- Python (PyPI)
- Package
owlmixin- Disclosed
- 08.11.2017
- Updated
- 11.10.2026 11:20
Sources and licenses
OSV / GitHub Advisory Database - PYSEC-2017-22 - PyPA Advisory Database; CC BY 4.0
OSV / GitHub Advisory Database - GHSA-ccmq-qvcp-5mrm - CC BY 4.0
Vulnerability history: owlmixin
All published vulnerabilities of this package (Python (PyPI)), newest first. Shows whether this is a one-off slip or a package that needs watching.
This is the only known vulnerability of this package.
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