7.3highHigh
CVE-2026-77075
N8n N8n
n8n before 1.123.69, 2.x before 2.33.4, and 2.34.x before 2.34.1 contain an expression injection vulnerability in resource-locator field link preview rendering. The editor spliced the field's stored value directly into the node type's URL template without checking for expression syntax. An authenticated member can store a malicious value so that when another user opens the affected node in the editor, the injected expression is evaluated as JavaScript in the victim's authenticated session (cross-user script execution).
Exploitation status
- A vendor advisory or patch reference has been published.
What the metrics mean
- It is reachable over a network, without needing local access.
- For an attacker who can reach it, no special conditions are needed to exploit it.
- To exploit it, an ordinary user account is needed.
- Beyond that, someone has to be persuaded to take an action first.
Scoring
- CVSS
- 7.3 (v3.1)
- Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:N- CVSS v4
- 8.4
- Weakness
- CWE-94
- Assigned by
- disclosure@vulncheck.com
Dates
- Published
- 2026-08-20
- Last modified
- 2026-09-01
- Sources
- NVD
Affected products
- N8n N8n- 1.123.69, 2.33.0 - 2.33.4, 2.34.0
As listed in the NVD configuration data. Not a statement about your estate.