OpenStack Murano Code Execution
OpenStack Murano before 1.0.3 (liberty) and 2.x before 2.0.1 (mitaka), Murano-dashboard before 1.0.3 (liberty) and 2.x before 2.0.1 (mitaka), and python-muranoclient before 0.7.3 (liberty) and 0.8.x before 0.8.5 (mitaka) improperly use loaders inherited from yaml.Loader when parsing MuranoPL and UI files, which allows remote attackers to create arbitrary Python objects and execute arbitrary code via crafted extended YAML tags in UI definitions in packages.
Affected software
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| Platform | Package | Vulnerable versions | Fixed in |
|---|---|---|---|
| Python (PyPI) | murano | < 1.0.3 | 1.0.3 |
| Python (PyPI) | murano-dashboard | >= 2.0.0, < 2.0.1 | 2.0.1 |
| Python (PyPI) | python-muranoclient | < 0.7.3, >= 0.8, < 0.8.5 | 0.7.3, 0.8.5 |
References
- https://nvd.nist.gov/vuln/detail/CVE-2016-4972
- https://github.com/openstack/murano/commit/28de8c36c9dbe4aaf4d062e6fb6099afd437f49b
- https://bugs.launchpad.net/murano/+bug/1586079
- https://bugs.launchpad.net/python-muranoclient/+bug/1586078
- https://github.com/openstack/murano
- https://github.com/openstack/murano/blob/c898a310afbc27f12190446ef75d8b0bd12115eb/releasenotes/notes/safeloader-cve-2016-4972-19035a2a091ec30a.yaml
- https://github.com/openstack/murano/blob/c898a310afbc27f12190446ef75d8b0bd12115eb/releasenotes/source/locale/en_GB/LC_MESSAGES/releasenotes.po
- https://github.com/pypa/advisory-database/tree/main/vulns/python-muranoclient/PYSEC-2016-22.yaml
- http://www.openwall.com/lists/oss-security/2016/06/23/8
- https://github.com/advisories/GHSA-87r7-q54j-f9qg
- https://pypi.org/project/murano-dashboard
- https://pypi.org/project/murano
- CVSS vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H- Weakness (CWE)
CWE-20- Platform
- Python (PyPI)
- Package
murano, murano-dashboard, python-muranoclient- Disclosed
- 26.09.2016
- Updated
- 11.10.2026 12:20
Sources and licenses
OSV / GitHub Advisory Database - PYSEC-2016-22 - PyPA Advisory Database; CC BY 4.0
OSV / GitHub Advisory Database - PYSEC-2026-430 - PyPA Advisory Database; CC BY 4.0
OSV / GitHub Advisory Database - GHSA-87r7-q54j-f9qg - CC BY 4.0
OSV / GitHub Advisory Database - PYSEC-2026-429 - PyPA Advisory Database; CC BY 4.0
Vulnerability history: python-muranoclient
All published vulnerabilities of this package (Python (PyPI)), newest first. Shows whether this is a one-off slip or a package that needs watching.
This is the only known vulnerability of this package.
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