CVE-2026-47386

NocoDB: OAuth Authorization Code Race Condition

State: Published
Severity: 6.3 Medium
Published: Jun 23, 2026
Updated: Jun 24, 2026
Reserved: May 19, 2026

Description

NocoDB is software for building databases as spreadsheets. Prior to 2026.05.1, 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. This vulnerability is fixed in 2026.05.1.

Scores

CVSS	Score	Vector	Source
4.0	6.3 Medium	CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N	GitHub_M

Weaknesses

CWE-362 Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')

Affected Products

Product	Versions
nocodbnocodb	< 2026.05.1Affected

References

https://github.com/nocodb/nocodb/security/advisories/GHSA-8m7c-hf24-5g47

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