Better Auth: OAuth refresh-token rotation forks the token family on concurrent redemption
High-risk advisory
CVE-2026-53517
Summary
Better Auth: OAuth refresh-token rotation forks the token family on concurrent redemption
Why it matters
GitHub has published a reviewed security advisory for @better-auth/oauth-provider. Prioritize it with other application dependency updates.
Operator check
Check whether @better-auth/oauth-provider is present in application dependency manifests, lockfiles, or build images. Review the GitHub advisory and upgrade to a patched version where available. CVSS score: 7.6.
Sources
PatchBrief uses public sources. It does not scan environments, verify exposure, or replace vendor guidance.