CVSS 3.0
9.8 criticalCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HCVE-2016-4972
Critical (9.8) in openstack. EPSS 3.2% chance of exploitation in the next 30 days. Fixed in murano 1.0.3.
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.
Severity
- EPSS
- 3.2% chance of exploitation in the next 30 days; higher than 88% of CVEs (scores of 2026-10-31)
- CWE
- CWE-20
- Published
- Modified
- Record from
- the NVD, synced
Affected
- openstack:mitaka-murano
- openstack:murano
- openstack:murano-dashboard
- openstack:python-muranoclient
Packages (OSV)
| Advisory | Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|---|
| GHSA-87r7-q54j-f9qg | PyPI | murano | <1.0.3 | 1.0.3 |
| GHSA-87r7-q54j-f9qg | PyPI | murano-dashboard | <1.0.3 | 1.0.3 |
| GHSA-87r7-q54j-f9qg | PyPI | murano-dashboard | >=2.0.0 <2.0.1 | 2.0.1 |
| GHSA-87r7-q54j-f9qg | PyPI | python-muranoclient | <0.7.3 | 0.7.3 |
| GHSA-87r7-q54j-f9qg | PyPI | python-muranoclient | >=0.8.0 <0.8.5 | 0.8.5 |
| PYSEC-2016-22 | PyPI | python-muranoclient | <0.7.3 >=0.8 <0.8.5 | 0.7.3, 0.8.5 |
| PYSEC-2026-429 | PyPI | murano | <1.0.3 | 1.0.3 |
| PYSEC-2026-430 | PyPI | murano-dashboard | >=2.0.0 <2.0.1 | 2.0.1 |