
CVE-2026-86259
OpenMAIC 1.0.0: Unauthenticated Outbound SSRF to Cloud Metadata Service via Fail-Open Middleware and Environment-Gated Validation Bypass
api-securitycloud-securitydata-exfiltration+6

OpenMAIC 1.0.0: Unauthenticated Outbound SSRF to Cloud Metadata Service via Fail-Open Middleware and Environment-Gated Validation Bypass

Docker lab reproducing the FOSSBilling pre-auth RCE chain (CVE-2026-27604 auth bypass + CVE-2026-28496 Twig SSTI) with a Python PoC and patched…