GHSA-w867-jm58-p9pv

Source

https://github.com/advisories/GHSA-w867-jm58-p9pv

Import Source

https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/07/GHSA-w867-jm58-p9pv/GHSA-w867-jm58-p9pv.json

JSON Data

https://api.osv.dev/v1/vulns/GHSA-w867-jm58-p9pv

Aliases

CVE-2026-58661

Published

2026-07-22T22:25:45Z

Modified

2026-07-22T22:31:06Z

Severity

5.3 (Medium) CVSS_V4 - 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 CVSS Calculator

Summary

n8n: Authenticated Users Can Exhaust Temporary Disk Storage via Data-Table File Uploads

Details

Impact

An authenticated user can repeatedly upload files to the data-table upload endpoint, bypassing the per-request quota check, which does not account for files already written to the shared temporary directory. This causes temporary files to accumulate on disk until the periodic cleanup runs, potentially exhausting available disk space on the host.

Patches

Users should upgrade to the patched version once available to remediate the vulnerability.

Workarounds

If upgrading is not immediately possible, administrators should consider the following temporary mitigations:

Restrict n8n instance access to fully trusted users only.
Set uploadMaxFileSize to a low value to limit individual upload size.
Monitor and alert on disk usage in the n8n temporary upload directory.

These workarounds do not fully remediate the risk and should only be used as short-term mitigation measures.

Database specific

{
    "cwe_ids":  [
        "CWE-770"
    ],
    "github_reviewed":  true,
    "github_reviewed_at":  "2026-07-22T22:25:45Z",
    "nvd_published_at":  null,
    "severity":  "MODERATE"
}

References

Affected packages

npm / n8n

Package

Name: n8n; View open source insights on deps.dev
Purl: pkg:npm/n8n

Affected ranges

Type: SEMVER
Events: Introduced

2.0.0

Fixed

2.28.0

Database specific

source

"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/07/GHSA-w867-jm58-p9pv/GHSA-w867-jm58-p9pv.json"

npm / n8n

Package

Name: n8n; View open source insights on deps.dev
Purl: pkg:npm/n8n

Affected ranges

Type: SEMVER
Events: Introduced

0 Unknown introduced version / All previous versions are affected

Fixed

1.123.58

Database specific

source

"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/07/GHSA-w867-jm58-p9pv/GHSA-w867-jm58-p9pv.json"