CVE-2026-86259: OpenMAIC before 1.0.1 SSRF via Environment-Gated URL Validation
Published Sep 6, 2026
·Updated
OpenMAIC before 1.0.1 skips server-side request forgery validation in non-production builds, allowing unauthenticated attackers to reach cloud instance metadata services. Attackers can supply arbitrary provider URLs via the x-base-url header or baseUrl parameter to access sensitive cloud credentials and metadata.
Affected Software
1 affected component
OpenMAIC<1.0.1
Event History
Sep 6, 2026
CVE Published
via MITRE·12:37 PM
Data Sourced
via MITRE·12:37 PM
DescriptionSeverityWeakness
Frequently Asked Questions
1
Are production deployments affected by the described validation bypass?
The bypass is described as occurring in non-production builds where SSRF validation is skipped. The provided information does not establish that production builds are affected by this specific issue.
2
Which request inputs should be reviewed for exposure?
Review uses of the x-base-url header and the baseUrl parameter, as these can supply arbitrary provider URLs. Unauthenticated attackers can use these inputs to target cloud instance metadata services in affected builds.