OpenStack Mistral API policy bypass leading to remote code execution
CVE-2026-41283 is a critical vulnerability in OpenStack Mistral affecting deployments where the Mistral API is exposed. Several Mistral API endpoints fail to enforce required access policies, allowing any authenticated user to create public resources and upload arbitrary code. That code is then executed on Mistral executor workers. The flaw is fundamentally an authorization failure in administrative or sensitive API operations, enabling a low-privileged authenticated tenant to perform actions that should be restricted to privileged users. Reported affected versions include Mistral >=20.0.0 and <20.1.1, 21.0.0, and 22.0.0.
Are you exposed to this one?
Mallory correlates every CVE against your assets, your vendors, and active adversary campaigns. Know which vulnerabilities matter for you, not just which ones are loud.
Impact, mitigation & remediation
What it means. What to do now. Patch path, mitigations, and the assume-compromise checklist.
Impact
What an attacker gets, and what they’ve been doing with it.
Mitigation
If you can’t patch tonight, do this now.
Remediation
Patch, then assume compromise.
Exploits
No public exploits tracked yet. Mallory keeps watching.
No public exploit code observed for this vulnerability.
Recent activity
11 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
The version that knows your environment.
Query your assets running an affected version, and investigate the blast radius.
Every observed campaign linking this CVE to a named adversary.
Malware families riding this exploit, with evidence and IOCs.
YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.
Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.