GHSA-99vc-2jx2-688p

Source

https://github.com/advisories/GHSA-99vc-2jx2-688p

Import Source

https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/05/GHSA-99vc-2jx2-688p/GHSA-99vc-2jx2-688p.json

JSON Data

https://api.osv.dev/v1/vulns/GHSA-99vc-2jx2-688p

Aliases

CVE-2026-46551

Published

2026-05-21T20:35:41Z

Modified

2026-05-21T20:45:09.157592662Z

Severity

6.5 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H CVSS Calculator

Summary

NocoDB: Missing File Size Enforcement in Upload-by-URL Allows Denial of Service via Disk Exhaustion

Details

Summary

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.

Details

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. The v3 service (v3/data-attachment-v3.service.ts) already enforced the limit, but the v1/v2 endpoints (POST /api/v1/db/storage/upload-by-url, POST /api/v2/storage/upload-by-url) did not.

This is distinct from GHSA-xr7v-j379-34v9 (blind SSRF via HEAD) — same code area, different class.

Impact

Authenticated DoS via disk exhaustion. Editor role suffices.
Cascading failures once disk fills: blocked DB writes, log rotation, application crash.

Credit

This issue was reported by @ik0z.

Database specific

{
    "nvd_published_at": null,
    "cwe_ids": [
        "CWE-770"
    ],
    "github_reviewed": true,
    "severity": "MODERATE",
    "github_reviewed_at": "2026-05-21T20:35:41Z"
}

References

Affected packages

npm / nocodb

Package

Name: nocodb; View open source insights on deps.dev
Purl: pkg:npm/nocodb

Affected ranges

Type: SEMVER
Events: Introduced

0Unknown introduced version / All previous versions are affected

Last affected

0.301.3

Database specific

source

"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/05/GHSA-99vc-2jx2-688p/GHSA-99vc-2jx2-688p.json"