CVE-2026-46553 PUBLISHED

NocoDB: Attachment Size Limit Bypass via Upload-by-URL

Assigner: GitHub_M
Reserved: 14.05.2026 Published: 23.06.2026 Updated: 23.06.2026

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.

Metrics

CVSS 4.0

CVSS Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P
CVSS Score: 2.1

Exploitability Metrics		Vulnerable System Impact Metrics		Subsequent System Impact Metrics
Attack Vector	Network	Confidentiality	None	Confidentiality	None
Attack Complexity	Low	Integrity	None	Integrity	None
Attack Requirements	None	Availability	Low	Availability	None
Privileges Required	Low
User Interaction	None

CVSS 4.0

Product Status

Vendor	nocodb
Product	nocodb
Versions	Version < 2026.04.1 is affected

References

https://github.com/nocodb/nocodb/security/advisories/GHSA-8rwr-f68v-cvw6

Problem Types

CWE-770: Allocation of Resources Without Limits or Throttling CWE