Security Advisory

CVE-2026-46551

CVE vulnerability detail - eXtreme Datacenter Security Operations

Published 2026-06-23 20:31:55

Last updated 2026-06-24 13:57:19

Assigner GitHub_M

CVSS score 6.5

State PUBLISHED

Description

NocoDB is software for building databases as spreadsheets. Prior to 2026.04.4, the uploadViaURL path in the v1/v2 attachment API did not enforce NC_ATTACHMENT_FIELD_SIZE against the remote content-length or against the response stream. An authenticated user (Editor+) could direct the server to download arbitrarily large files, exhausting disk space and causing denial of service. In packages/nocodb/src/services/attachments.service.ts, the HEAD probe read content-length but never compared it to NC_ATTACHMENT_FIELD_SIZE; the subsequent storageAdapter.fileCreateByUrl() performed the download without maxContentLength. This vulnerability is fixed in 2026.04.4.

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