n8n is an open source workflow automation platform. Prior to 1.123.61, 2.27.4, and, 2.28.1, an authenticated user with the default workflow:create permission could pollute Object.prototype through a crafted workflow saved, updated, or impor…
Exact source revision recorded 28 Oct 2026 08:37:15 UTC. It does not establish the source's current position. Latest evidence.
euvd · EUVD-2026-42612
Publishedn8n is an open source workflow automation platform. Prior to 1.123.61, 2.27.4, and, 2.28.1, an authenticated user with the default workflow:create permission could pollute Object.prototype through a crafted workflow saved, updated, or imported via the workflow API, allowing unauthenticated requests to be treated as a privileged user and exposing user and project listing endpoints. This issue is fixed in versions 1.123.61, 2.27.4, and 2.28.1.
EUVD source date text has no stated timezone and is retained without inventing a UTC instant. Related bulletin membership is not an alias, common cause or applicability claim. A missing vector with a zero score is treated as unrated. Complete vendor/product and underlying source evidence remains in the original JSON.
Original publisher date fields
datePublished: Jul 9, 2026, 3:30:28 PM
dateUpdated: Jul 9, 2026, 6:38:07 PM
1 related source bulletins · separate from aliases
NCSC-2026-0228: Kwetsbaarheden verholpen in n8n workflow automation platform
CVE-2026-59253 · CVE-2026-59257 · CVE-2026-59206 · CVE-2026-59207 · CVE-2026-59208 · CVE-2026-59209
- Source published
- Jul 9, 2026, 3:30:28 PM (timezone not stated)
- Source modified
- Jul 9, 2026, 6:38:07 PM (timezone not stated)
- Observed here
- 28 Oct 2026 08:37:15 UTC
- Source terms
- ENISA EUVD · source terms and attribution apply
Original source record · Cite this exact observation · Complete original publisher JSON
This view projects the publisher's source fields for reading; the original JSON retains additional fields and CVE enrichment containers. Attribution: euvd · ENISA EUVD · source terms and attribution apply. Source text is retained; field grouping and change labels are provided by ChangeIntel.
EUVD CVSS 4.0 · 7.1 CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:L/VA:N/SC:L/SI:L/SA:N