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CVE-2026-90461MEDIUM · CVSS 6.3

CVE-2026-90461

What's the vulnerability?

OpenStack Ironic through 38.0.0 may send a username and password to an unexpected remote host when Image Service is configured for HTTP(S) Basic Authentication.

Recommended remediation

  1. Inventory all assets running the affected vendor and product, including shadow IT and third-party hosted instances.
  2. Apply the vendor patch or mitigation referenced in the advisories below. Where no patch exists, isolate the asset or restrict network exposure.
  3. Hunt for indicators of prior compromise — exploitation of this class of bug often predates public disclosure.
  4. Deploy detections for the exploit primitives (network signature, EDR rule, WAF rule) and re-test after remediation.

Need help executing these steps? Our team typically completes validation and remediation within a single patch cycle. Request remediation support →

Vendor & research references