CVE-2026-47386: NocoDB: OAuth Authorization Code Race Condition

June 5, 2026 (updated July 20, 2026)

Two concurrent token-exchange requests using the same OAuth authorization code could each mint a distinct valid (access_token, refresh_token) pair, breaking the single-use guarantee that PKCE relies on.

References

github.com/advisories/GHSA-8m7c-hf24-5g47
github.com/nocodb/nocodb/releases/tag/2026.05.1
github.com/nocodb/nocodb/security/advisories/GHSA-8m7c-hf24-5g47
nvd.nist.gov/vuln/detail/CVE-2026-47386

Code Behaviors & Features

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