CVE-2026-47388Network attack vector

Cross-tenant file disclosure via unchecked attachment path

Published Jun 23, 2026 · Updated Jun 23, 2026

Authorization bypass in NocoDB before 2026.05.1 allows remote authenticated users to read cross-tenant files through the MCP API. The readAttachment tool streams a caller-supplied path from shared storage without confirming that its live file-reference row belongs to the caller's base. Exploitation requires a low-privilege MCP token and knowledge of an attachment path, and exposes files belonging to other bases or workspaces.

CVSS severity2.3
Low
EPSS probability0.27%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Authorization bypass in NocoDB before 2026.05.1 allows remote authenticated users to read cross-tenant files through the MCP API. The readAttachment tool streams a caller-supplied path from shared storage without confirming that its live file-reference row belongs to the caller's base. Exploitation requires a low-privilege MCP token and knowledge of an attachment path, and exposes files belonging to other bases or workspaces.

The record

CVE
CVE-2026-47388
Published
Jun 23, 2026
Updated
Jun 23, 2026
Vendor
NocoDB
Product
NocoDB
Classifications
CWE-639, T1213
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Jun 23, 2026CVE publishedPublication date reported by the CVE source.
  2. Jun 23, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=< 2026.05.1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

NocoDB · NocoDBversion=< 2026.05.1

Published CVSS scores

2.3GitHub, Inc.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

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-639Authorization Bypass Through User-Controlled Key
T1213Data from Information Repositories

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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