CVE-2026-65591highCWE-917

CVE-2026-65591: high-severity vulnerability in n8n-io n8n

n8n before 1.123.64 Sanitizer Bypass Remote Code Execution

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41Vexday Risk Score

No sign of exploitation. It has a public proof of concept.

ssvc Attendcvss 8.9epss 0.7%
from disclosure to weapon19 days
Published on NVDJul 22
1st PoC+19d
n8n contains a sanitizer bypass vulnerability in the legacy expression evaluator's computed-member handler. An authenticated user with workflow create or modify permissions can craft a malicious expression to bypass the sanitizer and achieve host-level code execution as the n8n process. The legacy expression engine is the default in affected versions. Fixed in n8n 1.123.64, 2.29.8, and 2.30.1.
CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:L
Affected products
n8n-io · n8n
⚠ Public resources, to assess the exposure of systems you control or are authorized to test. Test only with authorization.
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