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CVE-2020-26943

31
FAUCET Score

CVE-2020-26943 is a critical vulnerability affecting OpenStack blazar-dashboard versions prior to 1.3.1, 2.0.0, and 3.0.0. It allows an authenticated user with Blazar dashboard access to achieve remote code execution on the Horizon host due to the improper use of Python's eval function. This vulnerability carries a CVSS score of 9.9 (CRITICAL) with a low attack complexity, enabling unauthorized access and potential compromise of the Horizon service. Currently, there is no known active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
< 1.3.1CPE matchmatch criteria
cpe:2.3:a:openstack:blazar-dashboard:*:*:*:*:*:*:*:*
2.0.0CPE matchmatch criteria
cpe:2.3:a:openstack:blazar-dashboard:2.0.0:*:*:*:*:*:*:*
3.0.0CPE matchmatch criteria
cpe:2.3:a:openstack:blazar-dashboard:3.0.0:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

9.9CRITICAL

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
CHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
3.1
Impact Score
6.0
CvssVersion
3.1

Exploit Intelligence

EPSS Score
3.29%
Probability of exploitation in next 30 days
EPSS Percentile
87.2%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0329 is in the 89th percentile among its peer group of 1,124 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 1.0 Bluesky, 0.5 Mastodon, and 1.6 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (3)

pippatch availablevia ghsa
Product: blazar-dashboardFixed in: 1.3.1
pippatch availablevia ghsa
Product: blazar-dashboardFixed in: 2.0.1
pippatch availablevia ghsa
Product: blazar-dashboardFixed in: 3.0.1

Vendor Advisories (1)

pipGHSA-939m-4xpw-v34vmedium

Arbitrary Code Execution in blazar-dashboard

Oct 27, 2020

References

launchpad.net / bugs/1895688
Third Party Advisory
review.opendev.org / 755810
Third Party Advisory
review.opendev.org / 755812
Third Party Advisory
review.opendev.org / 755813
Third Party Advisory
review.opendev.org / 755814
Third Party Advisory
review.opendev.org / 756064
Third Party Advisory
security.openstack.org / ossa/OSSA-2020-007.html
Third Party Advisory
openwall.com / lists/oss-security/2020/10/16/5
Third Party Advisory