An exploitable vulnerability exists in the YAML parsing functionality in the YAMLParser…
Priority MEDIUM 48CWE-502Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Code execution
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Fixed
Attack profile from CVSS 3.0 · NVD. Fix status from CNA and GitHub. Impact type from CWE-502.
Summary
An exploitable vulnerability exists in the YAML parsing functionality in the YAMLParser method in Interfaces.py in PyAnyAPI before 0.6.1. A YAML parser 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.
Why it matters now
EPSS 0.0362 89th percentileScored 2026-11-07
Fix Fixed pyanyapi (PyPI): 0.6.1
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
| — | pyanyapi (PyPI) | before 0.6.1 | 0.6.1 | Patch available | GHSA-vg8g-jpm9-jh8r |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
- pyanyapi (PyPI) Vendor— Affected before 0.6.1 Fixed in 0.6.1 Patch available GHSA-vg8g-jpm9-jh8r
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:pyanyapi_project:pyanyapi:*:*:*:*:*:*:*:* | before 0.6.1 | Vulnerable | Pyanyapi Project |
- cpe:2.3:a:pyanyapi_project:pyanyapi:*:*:*:*:*:*:*:* Versions before 0.6.1 Vulnerable ·Pyanyapi Project
Remediation
- Fix · GHSA-vg8g-jpm9-jh8r pyanyapi (PyPI) Fixed in 0.6.1 Advisory →
Timeline
- 2026-10-02 Threatist record created from CVE-2017-16616
- 2026-10-03 Alias added: GHSA-vg8g-jpm9-jh8r
References
Advisory 3
Other 7
- https://github.com/Stranger6667/pyanyapi/issues/41
- https://github.com/Stranger6667/pyanyapi/releases/tag/0.6.1
- https://pypi.python.org/pypi/pyanyapi/0.6.1
- https://github.com/Stranger6667/pyanyapi/commit/810db626c18ebc261d5f4299d0f0eac38d5eb3cf
- https://github.com/Stranger6667/pyanyapi
- https://github.com/pypa/advisory-database/tree/main/vulns/pyanyapi/PYSEC-2017-23.yaml
- https://joel-malwarebenchmark.github.io/blog/2017/11/08/cve-2017-16616-yamlparser-in-pyanyapi
Sources
- CVE-2017-16616 · CVE Program
- CVE-2017-16616 · NVD
- FIRST EPSS
- GHSA-vg8g-jpm9-jh8r · GitHub Advisory Database · CC BY 4.0
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