CVE-2026-47388

CVE-2026-47388 is a low-severity vulnerability with a CVSS 4.0 base score of 2.3. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-639.

Key facts

Description

NocoDB is software for building databases as spreadsheets. Prior to 2026.05.1, a low-privilege MCP token holder with knowledge of an attachment path could read any file in shared storage, including attachments belonging to other bases and workspaces, because the MCP readAttachment tool did not verify the file's ownership. This vulnerability is fixed in 2026.05.1.

Frequently asked questions

What is CVE-2026-47388?
NocoDB is software for building databases as spreadsheets. Prior to 2026.05.1, a low-privilege MCP token holder with knowledge of an attachment path could read any file in shared storage, including attachments belonging to other bases and workspaces, because the MCP readAttachment tool did not verify the file's ownership. This vulnerability is fixed in 2026.05.1.
How severe is CVE-2026-47388?
CVE-2026-47388 has a CVSS 4.0 base score of 2.3, rated low severity.
Is CVE-2026-47388 being actively exploited?
It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (11th percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2026-47388?
Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2026-47388 have an EU (EUVD) identifier?
Yes. CVE-2026-47388 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-38611.
When was CVE-2026-47388 published?
CVE-2026-47388 was published on 2026-06-23 and last updated on 2026-06-25.

References

Other CWE-639 (Authorization Bypass Through User-Controlled Key (IDOR)) vulnerabilities

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