CVE-2026-47388 NocoDB: Missing Ownership Check in MCP Attachment Read
Low-privilege users can read arbitrary files from shared storage by bypassing ownership checks in the MCP attachment tool.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-47388?
CVE-2026-47388 is a low-severity missing authorization vulnerability in nocodb, published on 23 Jun 2026. Any signed-in user can exploit it over the network, with no action from the victim.
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.
Weakness: CWE-639
Which versions are affected by CVE-2026-47388?
2 open source packages ship an affected version, including nocodb.
| Package | Affected | Fixed in |
|---|---|---|
nocodb npm | All versions | 2026.05.1 |
nocodb npm | All versions | 2026.05.1 |
How do I fix CVE-2026-47388?
Upgrade nocodb to 2026.05.1 or later.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2026-47388 being exploited?
There is no known exploitation of CVE-2026-47388 in the wild and no public exploit code.
Sources
Also known as GHSA-xxpj-q764-9r6q.