CVE-2026-77075

published 2026-08-20

CVE-2026-77075: 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…

Priority P3 41 high 7.3 CVSS 3.1

AV N AC L PR L UI R S U C H I H A N

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).

Affected

6 ranges

Vendor	Product	Version range	Fixed in
n8n-io	n8n	< 1.123.69	1.123.69
n8n-io	n8n	>= 2.0.0 < 2.33.4	2.33.4
n8n-io	n8n	>= 2.34.0 < 2.34.1	2.34.1
n8n	n8n	< 1.123.69	1.123.69
n8n	n8n	—	—
n8n	n8n	>= 2.33.0 < 2.33.4	2.33.4

CVSS provenance

nvd v3.1 7.3 HIGH CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:N

nvd v4.0 8.4 HIGH CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:A/VC:H/VI:H/VA:N/SC:L/SI:L/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Stop checking back — get the weekly exploitation signal.

Every Monday: what got weaponized or added to CISA KEV in the last seven days — each CVE cross-linked to its PoC, Nuclei template, and detection rule. Free, one email a week, unsubscribe in one click.

CWE-94