Description
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.
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | ruamel.yaml | No fix yet | — |
| Debian 13 | ruamel.yaml | No fix yet | — |
| Debian 12 | ruamel.yaml | No fix yet | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 26.10 | ruamel.yaml | No fix yet | — |
| Ubuntu 26.04 LTS | ruamel.yaml | No fix yet | — |
| Ubuntu 25.10 | ruamel.yaml | No fix yet | — |
| Ubuntu 24.04 LTS | ruamel.yaml | No fix yet | — |
| Ubuntu 22.04 LTS | ruamel.yaml | No fix yet | — |
Show 3 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 20.04 LTS | ruamel.yaml | No fix yet | — |
| Ubuntu 18.04 LTS | ruamel.yaml | No fix yet | — |
| Ubuntu 16.04 LTS | ruamel.yaml | No fix yet | — |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | python-ruaeml.yaml | 0.18.6-1.2 | openSUSE-SU-2024:14164-1 |
| openSUSE Tumbleweed | python-ruamel.yaml | 0.19.1-2.1 | openSUSE-SU-2026:11904-1 |
Advisories 2
- openSUSE-SU-2026:11904-1 python313-ruamel.yaml-0.19.1-2.1 on GA media SUSE / openSUSE Security Updates · Sep 29, 2026
- openSUSE-SU-2024:14164-1 python310-ruamel.yaml-0.18.6-1.2 on GA media SUSE / openSUSE Security Updates · Feb 4, 2026