Steeltoe vulnerable to management-port isolation bypass via spoofed Host header
High-risk advisory
CVE-2026-50194
Summary
Steeltoe vulnerable to management-port isolation bypass via spoofed Host header
Why it matters
GitHub has published a reviewed security advisory for Steeltoe.Management.Endpoint. Prioritize it with other application dependency updates, especially because EPSS places it in the 15% percentile.
Operator check
Check whether Steeltoe.Management.Endpoint is present in application dependency manifests, lockfiles, or build images. Review the GitHub advisory and upgrade to a patched version where available. EPSS probability: 0.2%; percentile: 15%.
Sources
PatchBrief uses public sources. It does not scan environments, verify exposure, or replace vendor guidance.