CVE-2026-41283
CVE-2026-41283 is a critical-severity vulnerability with a CVSS 3.x base score of 9.9. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-863.
Key facts
- Severity: Critical (CVSS 3.x base score 9.9)
- EPSS exploit prediction: 1% (60th percentile)
- Actively exploited: Not listed in CISA KEV
- EU (EUVD) id: EUVD-2026-34201
- Weakness: CWE-863
- Published:
- Last modified:
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.
Frequently asked questions
- What is CVE-2026-41283?
- 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.
- How severe is CVE-2026-41283?
- CVE-2026-41283 has a CVSS 3.x base score of 9.9, rated critical severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
- Is CVE-2026-41283 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (60th percentile), an estimate of the probability of exploitation in the next 30 days.
- How do I fix CVE-2026-41283?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
- Does CVE-2026-41283 have an EU (EUVD) identifier?
- Yes. CVE-2026-41283 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-34201.
- When was CVE-2026-41283 published?
- CVE-2026-41283 was published on 2026-06-04 and last updated on 2026-07-22.
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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