Medplum: Improper Validation of Redirect URI in External Auth Callback allows Authorization Code Leakage

Date Aug 17, 2026
Type Vendor advisory
Signal High-risk advisory
Vendor / Product npm ยท @medplum/core
CVE CVE-2026-53728
High-risk advisory CVE-2026-53728

Summary

Medplum: Improper Validation of Redirect URI in External Auth Callback allows Authorization Code Leakage

Why it matters

GitHub has published a reviewed security advisory for @medplum/core. Prioritize it with other application dependency updates.

Operator check

Check whether @medplum/core 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.