Vulnerability in Ruamel.yaml Project

CVE-2019-20478

In ruamel.yaml through 0.16.7, the load method allows remote code execution if the application calls this method with an untrusted argument. In other words, this issue affects developers who are unaware of the need to use methods such as safe_load in these use cases.

Published · last modified .

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.068 (94.0th percentile), scored .

Low probability of exploitation in the next 30 days, but still tracked. 94th percentile — 94.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2019-20478: held from 0.068 to 0.068.

EPSS over last 30 days · oldest: 0.068 · newest: 0.068 · change: +0.001

Affected products

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2019-20478?
CVE-2019-20478 is a critical-severity vulnerability in Ruamel.yaml Project. CVSS score: 9.8/10. Published 2020-02-19.
How severe is CVE-2019-20478?
Critical severity. CVSS v3 base score is 9.8 out of 10.
Is CVE-2019-20478 known to be exploited?
2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.