An issue was discovered in OpenStack blazar-dashboard before 1.3.1, 2.0.0, and 3.0.0.
Priority MEDIUM 48CWE-94Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Code execution
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Fixed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA and GitHub. Impact type from CWE-94.
Summary
An issue was discovered in OpenStack blazar-dashboard before 1.3.1, 2.0.0, and 3.0.0. A user allowed to access the Blazar dashboard in Horizon may trigger code execution on the Horizon host as the user the Horizon service runs under (because the Python eval function is used). This may result in Horizon host unauthorized access and further compromise of the Horizon service. All setups using the Horizon dashboard with the blazar-dashboard plugin are affected.
Why it matters now
EPSS 0.03286 88th percentileScored 2026-11-07
Fix Fixed blazar-dashboard (PyPI): 1.3.1, 2.0.1, 3.0.1
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 |
| — | blazar-dashboard (PyPI) | before 1.3.1 | 1.3.1 | Patch available | GHSA-939m-4xpw-v34v |
| — | blazar-dashboard (PyPI) | 2.0.0 to before 2.0.1 | 2.0.1 | Patch available | GHSA-939m-4xpw-v34v |
| — | blazar-dashboard (PyPI) | 3.0.0 to before 3.0.1 | 3.0.1 | Patch available | GHSA-939m-4xpw-v34v |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
- blazar-dashboard (PyPI) Vendor— Affected before 1.3.1 Fixed in 1.3.1 Patch available GHSA-939m-4xpw-v34v
- blazar-dashboard (PyPI) Vendor— Affected 2.0.0 to before 2.0.1 Fixed in 2.0.1 Patch available GHSA-939m-4xpw-v34v
- blazar-dashboard (PyPI) Vendor— Affected 3.0.0 to before 3.0.1 Fixed in 3.0.1 Patch available GHSA-939m-4xpw-v34v
Remediation
- Fix · GHSA-939m-4xpw-v34v blazar-dashboard (PyPI) Fixed in 1.3.1 Advisory →
- Fix · GHSA-939m-4xpw-v34v blazar-dashboard (PyPI) Fixed in 2.0.1 Advisory →
- Fix · GHSA-939m-4xpw-v34v blazar-dashboard (PyPI) Fixed in 3.0.1 Advisory →
Timeline
- 2026-10-02 Threatist record created from CVE-2020-26943
- 2026-10-03 Alias added: GHSA-939m-4xpw-v34v
References
Advisory 9
- https://launchpad.net/bugs/1895688
- https://review.opendev.org/755810
- https://review.opendev.org/756064
- https://review.opendev.org/755812
- https://review.opendev.org/755813
- https://review.opendev.org/755814
- https://security.openstack.org/ossa/OSSA-2020-007.html
- [oss-security] 20201016 [OSSA-2020-007] Blazar: Remote code execution in blazar-dashboard (CVE-2020-26943)
- https://nvd.nist.gov/vuln/detail/CVE-2020-26943
Sources
- CVE-2020-26943 · CVE Program
- CVE-2020-26943 · NVD
- FIRST EPSS
- GHSA-939m-4xpw-v34v · GitHub Advisory Database · CC BY 4.0
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