n8n before 2.41.5 and 2.42.x before 2.42.2 passes a failed workflow's full execution context, including the identity of the user who started the run, to the configured error workflow. A project editor can set a colleague's workflow settings.errorWorkflow to an error workflow they own, inherit the colleague's identity when that workflow fails, and resolve the colleague's per-user dynamic credential secrets.
https://github.com/n8n-io/n8n/security/advisories/GHSA-pcr3-v5vr-qppf
Published: 2026-10-28
Updated: 2026-10-28
Base Score: 6.6
Vector: CVSS2#AV:N/AC:H/Au:S/C:C/I:C/A:N
Severity: Medium
Base Score: 7.7
Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:H/I:H/A:N
Severity: High
Base Score: 5.1
Vector: CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:P/VC:L/VI:L/VA:N/SC:H/SI:H/SA:N
Severity: Medium
EPSS: 0.00202