CVE-2026-41283
OpenStack Mistral allows Arbitrary Remote Code Execution when the API is exposed
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.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- Low
- User interaction
- None
What an attacker can affect
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Exploit likelihood
What each source reports
CVE List Score used
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.
- Record
CVE-2026-41283- CVSS 3.1
- 9.9 Critical
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H - Weakness
- CWE-863, CWE-749
- Updated
- 2026-11-02
EUVDEUVD-2026-34201
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.
- Record
EUVD-2026-34201- CVSS 3.1
- 9.9 Critical
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H - Updated
- 2026-11-02
GitHub AdvisoriesGHSA-9hfw-w3f4-c4p8
OpenStack Mistral allows Arbitrary Remote Code Execution when the API is exposed
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.
- Record
GHSA-9hfw-w3f4-c4p8- CVSS 3.1
- 9.9 Critical
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H - Weakness
- CWE-749, CWE-863
- Updated
- 2026-11-02
NVD
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.
- Record
CVE-2026-41283- CVSS 3.1
- 9.9 Critical
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H - Weakness
- CWE-863, CWE-749
- Updated
- 2026-11-02
OSV
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.
- Record
CVE-2026-41283- CVSS 3.1
- 9.9 Critical
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H - Weakness
- CWE-863
- Updated
- 2026-11-02
OSVDEBIAN-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.
- Record
DEBIAN-CVE-2026-41283- CVSS 3.1
- 9.9 Critical
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H - Updated
- 2026-11-02
Show 4 moreShow less
OSVGHSA-9hfw-w3f4-c4p8
OpenStack Mistral allows Arbitrary Remote Code Execution when the API is exposed
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.
- Record
GHSA-9hfw-w3f4-c4p8- CVSS 3.1
- 9.9 Critical
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H - Weakness
- CWE-749, CWE-863
- Updated
- 2026-11-02
OSVPYSEC-2026-3486
OpenStack Mistral allows Arbitrary Remote Code Execution when the API is exposed
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.
- Record
PYSEC-2026-3486- CVSS 3.1
- 9.9 Critical
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H - Updated
- 2026-11-02
OSVUBUNTU-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.
- Record
UBUNTU-CVE-2026-41283- CVSS 3.1
- 9.9 Critical
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H - Updated
- 2026-11-05
OSVUSN-8422-1 No score
mistral vulnerability
Eduardo Gonzalez Gutierrez and Arnaud Morin discovered that Mistral did not properly enforce access policies on some API endpoints. An attacker could possibly execute arbitrary code on a Mistral worker and possibly extract sensitive data including service credentials from it.
- Record
USN-8422-1- Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
mistralPyPI |
20.0.0 up to 20.1.1 | 20.1.1 |
mistralPyPI |
21.0.0 to 21.0.0 | None known |
mistralPyPI |
22.0.0 to 22.0.0 | None known |
mistralDebian:12 |
before 15.0.0-1+deb12u1, plus listed versions 15.0.0-1 |
15.0.0-1+deb12u1 |
mistralDebian:13 |
before 20.0.0-2+deb13u1, plus listed versions 20.0.0-2 |
20.0.0-2+deb13u1 |
mistralDebian:14 |
before 22.0.0-3, plus listed versions 20.0.0-221.0.0-121.0.0-221.0.0-421.0.0-5 Show 7 moreShow less21.0.0-621.0.0~rc1-121.0.0~rc1-222.0.0-122.0.0~rc1-122.0.0~rc1-222.0.0~rc1-3 |
22.0.0-3 |
mistralPyPI |
20.0.0 up to 20.1.1, plus listed versions 20.1.0 |
20.1.1 |
mistralPyPI |
Listed versions 21.0.0 |
None known |
mistralPyPI |
Listed versions 22.0.0 |
None known |
mistralPyPI |
Listed versions 21.0.022.0.0 |
None known |
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| Package | Affected | Fixed |
|---|---|---|
mistralUbuntu:20.04:LTS |
All versions, plus listed versions 9.0.0-0ubuntu110.0.0~b1~git2019121815.bc46b29f-0ubuntu110.0.0~b2~git2020020609.5b5576dd-0ubuntu110.0.0~b3~git2020032611.8a5d35ac-0ubuntu110.0.0~b3~git2020041013.a7da00d7-0ubuntu110.0.0-0ubuntu0.20.04.1 |
None known |
mistralUbuntu:22.04:LTS |
before 14.0.0-0ubuntu1.1, plus listed versions 13.0.0-0ubuntu113.0.0+git2021120910.b2d6de56-0ubuntu113.0.0+git2022030313.55bb2564-0ubuntu114.0.0-0ubuntu1 |
14.0.0-0ubuntu1.1 |
mistralUbuntu:24.04:LTS |
before 18.0.1-0ubuntu1.1, plus listed versions 17.0.0-0ubuntu118.0.0~rc1-0ubuntu118.0.1-0ubuntu1 |
18.0.1-0ubuntu1.1 |
mistralUbuntu:25.10 |
before 21.0.0-0ubuntu1.1, plus listed versions 20.0.0-0ubuntu121.0.0~rc1-0ubuntu121.0.0-0ubuntu1 |
21.0.0-0ubuntu1.1 |
mistralUbuntu:26.10 |
All versions, plus listed versions 22.0.0-0ubuntu122.0.0-0ubuntu222.0.0+git20260814.61.b4aeb55-0ubuntu123.0.0~rc1-0ubuntu123.0.0-0ubuntu1 |
None known |
mistralUbuntu:26.04:LTS |
before 22.0.0-0ubuntu1.1, plus listed versions 21.0.0-0ubuntu121.0.0+git20260106.10.420677c8-0ubuntu122.0.0-0ubuntu1 |
22.0.0-0ubuntu1.1 |
History
| Recorded | Changed | Sources |
|---|---|---|
| affected | OSV | |
| affected, facts | OSV | |
| first indexed | CVE List, EUVD, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2026-41283 is a critical vulnerability (CVSS 9.9) in Openstack Mistral, published June 4, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.73%, the 54th percentile. Fixed in mistral 20.1.1.
References
github.com/openstack/mistral/tags
openwall.com/lists/oss-security/2026/06/03/14
security.openstack.org/ossa/OSSA-2026-020.html
access.redhat.com/security/cve/CVE-2026-41283
bugzilla.redhat.com/show_bug.cgi?id=2484607
security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-41283.json
Show 10 moreShow less
nvd.nist.gov/vuln/detail/CVE-2026-41283
security-tracker.debian.org/tracker/CVE-2026-41283
pypi.org/project/mistral
ubuntu.com/security/CVE-2026-41283
cve.org/CVERecord?id=CVE-2026-41283
launchpad.net/bugs/2147178