CVE-2026-41283

Severity: critical (CVSS 9.9 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.7% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-06-04 · updated 2026-07-22
Weakness: CWE-863

Description

OpenStack Mistral through 22.0.0 allows Arbitrary Remote Code Execution when the API is exposed. There are endpoints that allow code execution, which can lead to exfiltration of service credentials.

Affected products

OpenStack Mistral: from 20.0.0 before 20.1.1; 21.0.0, 22.0.0 — fixed in 20.1.1

How to fix

Upgrade to a fixed version: OpenStack Mistral 20.1.1. Check the vendor advisory for mitigations.

References

https://github.com/openstack/mistral/tags
https://security.openstack.org/ossa/OSSA-2026-020.html
https://www.openwall.com/lists/oss-security/2026/06/03/14
http://www.openwall.com/lists/oss-security/2026/06/03/14
https://access.redhat.com/security/cve/CVE-2026-41283
https://bugzilla.redhat.com/show_bug.cgi?id=2484607
https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-41283.json

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