CVE-2026-46553
Received Received - Intake
Remote File Size Bypass in NocoDB

Publication date: 2026-06-23

Last updated on: 2026-06-23

Assigner: GitHub, Inc.

Description
NocoDB is software for building databases as spreadsheets. Prior to 2026.04.1, the upload-by-URL path did not enforce NC_ATTACHMENT_FIELD_SIZE against either the remote file's advertised Content-Length or the decoded length of a data: URI, allowing an authenticated user to bypass the configured per-file size limit. This vulnerability is fixed in 2026.04.1.
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Meta Information
Published
2026-06-23
Last Modified
2026-06-23
Generated
2026-06-24
AI Q&A
2026-06-24
EPSS Evaluated
N/A
NVD
CVE-2026-46553
Affected Vendors & Products
Showing 1 associated CPE
Vendor Product Version / Range
nocodb nocodb to 2026.04.1 (inc)
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Exploitability
CWE
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KEV
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CWE ID Description
CWE-770 The product allocates a reusable resource or group of resources on behalf of an actor without imposing any intended restrictions on the size or number of resources that can be allocated.
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Executive Summary

This vulnerability exists in NocoDB software versions prior to 2026.04.1. It involves the upload-by-URL feature, which did not properly enforce the configured per-file size limit (NC_ATTACHMENT_FIELD_SIZE). Specifically, an authenticated user could bypass this size restriction by exploiting the way the software handled the remote file's advertised Content-Length or the decoded length of a data: URI.

As a result, users could upload files larger than the allowed size limit, potentially leading to unexpected behavior or resource usage.

Impact Analysis

The impact of this vulnerability is that an authenticated user can upload files exceeding the configured size limits. This could lead to increased storage consumption, potential denial of service due to resource exhaustion, or other unintended consequences related to handling oversized files.

Mitigation Strategies

To mitigate this vulnerability, you should upgrade NocoDB to version 2026.04.1 or later, where the issue with upload-by-URL path enforcing file size limits is fixed.

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