Microsoft.OpenAPI: Circular schema references may terminate OpenAPI parsing
High-risk advisory
CVE-2026-49451
Summary
Microsoft.OpenAPI: Circular schema references may terminate OpenAPI parsing
Why it matters
GitHub has published a reviewed security advisory for Microsoft.OpenAPI. Prioritize it with other application dependency updates.
Operator check
Check whether Microsoft.OpenAPI is present in application dependency manifests, lockfiles, or build images. Review the GitHub advisory and upgrade to a patched version where available.
Sources
PatchBrief uses public sources. It does not scan environments, verify exposure, or replace vendor guidance.