CVE catalog
CVE-2019-20478
ruamel.yaml: CVE-2019-20478
- Severity
- High · CVSS 7.3
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L - Published
- Source
- [NVD] · [CVE record]
- EPSS
- 6.83% · Oct 25, 2026
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.
Vulnerable and fixed packages
Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.
| Distribution | Package | Release | Version | Status |
|---|---|---|---|---|
| Debian | ruamel.yaml | sid | 0.18.14-4 | vulnerable |
| Debian | ruamel.yaml | forky | 0.18.14-4 | vulnerable |
| Debian | ruamel.yaml | trixie | 0.18.10+ds-1 | vulnerable |
| Debian | ruamel.yaml | bookworm | 0.17.21-1 | vulnerable |
| Opensuse | python-ruamel.yaml | tumbleweed | 0.19.1-2.1 | fixed |
| Opensuse | python-ruaeml.yaml | tumbleweed | 0.18.6-1.2 | fixed |
Fixed-version evidence
| Distribution | Package | Type | Release | Fixed version | Urgency | Origin | Bugs |
|---|---|---|---|---|---|---|---|
| Debian | ruamel.yaml | source | sid | (unfixed) | unimportant | Not reported | Not reported |
| Debian | ruamel.yaml | source | forky | (unfixed) | unimportant | Not reported | Not reported |
| Debian | ruamel.yaml | source | trixie | (unfixed) | unimportant | Not reported | Not reported |
| Debian | ruamel.yaml | source | bookworm | (unfixed) | unimportant | Not reported | Not reported |
| Opensuse | python-ruamel.yaml | rpm | tumbleweed | 0.19.1-2.1 | Not reported | OPENSUSE-SU-2026:11904-1 | Not reported |
| Opensuse | python-ruaeml.yaml | rpm | tumbleweed | 0.18.6-1.2 | Not reported | OPENSUSE-SU-2024:14164-1 | Not reported |
OpenFactory catalog packages
[Debian 12 (Bookworm)]
- [python3-ruamel.yaml]Affected
Source package: [ruamel.yaml]
Details (2)
0.17.21-1· all · bookwormAffected
dsa · ruamel.yaml · debian · bookworm; dsa · ruamel.yaml · debian · 12
0.17.21-1· all · bookwormAffected
dsa · ruamel.yaml · debian · bookworm; dsa · ruamel.yaml · debian · 12
[Debian 13 (Trixie)]
- [python3-ruamel.yaml]Affected
Source package: [ruamel.yaml]
Details (2)
0.18.10+ds-1· all · trixieAffected
dsa · ruamel.yaml · debian · 13
0.18.10+ds-1· all · trixieAffected
dsa · ruamel.yaml · debian · 13
[openSUSE Tumbleweed]
- [python313-ruamel.yaml]Unknown
Source package: [python-ruamel.yaml]
Details (1)
0.19.1-1.3· noarch · tumbleweedUnknown · Fixed:
0.19.1-2.1Version impact unknown
dsa · python-ruamel.yaml · opensuse · tumbleweed
- [python314-ruamel.yaml]Unknown
Source package: [python-ruamel.yaml]
Details (1)
0.19.1-1.3· noarch · tumbleweedUnknown · Fixed:
0.19.1-2.1Version impact unknown
dsa · python-ruamel.yaml · opensuse · tumbleweed
Observed:
References
- [https://ftp.suse.com/pub/projects/security/csaf/opensuse-su-2024_11271-1.json]
- [https://osv.dev/vulnerability/DEBIAN-CVE-2019-20478]
- [https://osv.dev/vulnerability/openSUSE-SU-2024:14164-1]
- [https://osv.dev/vulnerability/openSUSE-SU-2026:11904-1]
- [https://security-tracker.debian.org/tracker/CVE-2019-20478]
[Debian Security Tracker] · [FIRST EPSS] · [OSV Package Vulnerability Database] · [SUSE security advisories and VEX]