VDB
DEBIAN-CVE-2020-1747
DEBIAN-CVE-2020-1747
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 |
|---|---|---|
| Debian:13 | pyyaml | 0, 0, 0 |
| Debian:14 | pyyaml | 0, 0, 0 |
| Debian:12 | pyyaml | 0, 0, 0 |
| Debian:11 | pyyaml | 0, 0, 0 |
Exploit Intelligence
- sarif.json (github-poc)
- guard-yaml.js (github-poc)
- guard-yaml.js (github-poc)
Timeline
- Mar 24, 2020 CVE Published
- Apr 28, 2026 CVE Updated