Vulnerability · Published Jun 23, 2026 · Assigned by GitHub_M

CVE-2026-47388NocoDB: Missing Ownership Check in MCP Attachment Read

Low 2.3

In plain English

A low-severity authorization bypass via user-controlled key in nocodb from nocodb. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 19% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 4.0)2.3Low

Exploit odds (30 days)0.3%top 80.6% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official 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.

Affected packages & fixed versions

Ecosystem	Package	Fixed in	Advisory
npm	nocodb	2026.05.1	GHSA-xxpj-q764-9r6q

Affected products (as reported)

Vendor	Product	Versions
nocodb	nocodb	< 2026.05.1

Weakness: CWE-639 · Vector: CVSS:4.0/AV:N/AC:H/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N

References

https://github.com/nocodb/nocodb/security/advisories/GHSA-xxpj-q764-9r6q x_refsource_CONFIRM