CVE-2026-110853CWE-639

CVE-2026-110853

published October 15, 2026

CVSS
7.1
EPSS
0%
Percentile
12.9
In the wild
Unconfirmed
What it is

n8n before 1.123.83 contains an authorization bypass vulnerability that allows authenticated members to spoof workflow identity by supplying a trusted identifier in Execute Sub-workflow inline JSON mode. Attackers can set this identifier to resolve credentials from projects they do not belong to and modify another workflow's static data and error-workflow dispatch.

The record
Technical detail
CVSS
7.1 · NONE
CVSS v4.0
7.1 · CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:L/VA:N/SC:H/SI:L/SA:N
EPSS
0.00228 · 12.9th percentile
Weakness
CWE-639 · Authorization Bypass Through User-Controlled Key
Published
2026-10-15T03:17Z
References (2)
https://github.com/n8n-io/n8n/security/advisories/GHSA-866p-xg8v-g2q7 · [email protected]https://www.vulncheck.com/advisories/n8n-before-1.123.83-authorization-bypass-via-execute-sub-workflow-inline-json · [email protected]
EPSS history
Timeline
  • 16 OCT 03:27Z
    EPSS moved — → 0%
    epss
  • 14 OCT 22:52Z
    n8n before 1.123.83 Authorization Bypass via Execute Sub-workflow Inline JSON
    cvelistv5
  • 14 OCT 22:52Z
    n8n before 1.123.83 Authorization Bypass via Execute Sub-workflow Inline JSON
    cvelistv5