VDB
AZL-31783
AZL-31783
PUBLISHED
CVSS 9.800000190734863 CRITICAL
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 untrusted input may be vulnerable to this flaw. An attacker could use this flaw to execute arbitrary code on the system by abusing the python/object/new constructor.
Risk Scores
CVSS 3.1
9.800000190734863
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Azure Linux:2 | PyYAML | 0 |
Exploit Intelligence
- sarif.json (github-poc)
- guard-yaml.js (github-poc)
- guard-yaml.js (github-poc)
Timeline
- Mar 24, 2020 CVE Published
- Apr 21, 2026 CVE Updated