In ruamel.yaml through 0.16.7, the load method allows remote code execution if the…
Priority MEDIUM 52Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Will not fix Red Hat: no fix planned
Attack profile from CVSS 3.1 · NVD. Fix status from CNA and Red Hat.
Summary
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.
Why it matters now
EPSS 0.06834 94th percentileScored 2026-11-07
Fix Will not fix Red Hat: no fix planned
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 |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:ruamel.yaml_project:ruamel.yaml:*:*:*:*:*:*:*:* | up to 0.16.7 | Vulnerable | Ruamel.yaml Project |
- cpe:2.3:a:ruamel.yaml_project:ruamel.yaml:*:*:*:*:*:*:*:* Versions up to 0.16.7 Vulnerable ·Ruamel.yaml Project
Remediation
No fixed version listed by the sources yet.
Vendor assessments
Red Hat
Red Hat rating: Moderate. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat OpenShift Container Platform 3.11 | Affected | No fix planned: Will not fix |
| Red Hat OpenShift Container Platform 4 | Affected | No fix planned: Will not fix |
| Red Hat OpenStack Platform 15 (Stein) | Affected | No fix planned: Out of support scope |
| Red Hat OpenStack Platform 16 (Train) | Affected | No fix planned: Will not fix |
Not affected: 3 products
- Red Hat OpenShift Container Platform 3.11
- Red Hat OpenShift Container Platform 4
- Red Hat Storage 3
Timeline
- 2026-10-02 Threatist record created from CVE-2019-20478
- 2026-10-03 Alias added: GHSA-xg77-mvwp-crp2
References
Sources
- CVE-2019-20478 · CVE Program
- CVE-2019-20478 · NVD
- FIRST EPSS
- GHSA-xg77-mvwp-crp2 · GitHub Advisory Database · CC BY 4.0
- CVE-2019-20478 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences