Microsoft.OpenApi.YamlReader vulnerable to denial of service via YAML alias expansion
High-risk advisory
CVE-2026-72923
Summary
Microsoft.OpenApi.YamlReader vulnerable to denial of service via YAML alias expansion
Why it matters
GitHub has published a reviewed security advisory for Microsoft.OpenApi.YamlReader. Prioritize it with other application dependency updates, especially because EPSS places it in the 68% percentile.
Operator check
Check whether Microsoft.OpenApi.YamlReader is present in application dependency manifests, lockfiles, or build images. Review the GitHub advisory and upgrade to a patched version where available. EPSS probability: 1.2%; percentile: 68%.
Sources
PatchBrief uses public sources. It does not scan environments, verify exposure, or replace vendor guidance.