n8n is a workflow automation platform. Prior to version 1.99.1, an authorization vulnerability was discovered in the /rest/executions/:id/stop endpoint of n8n. An authenticated user can stop workflow executions that they do not own or that have not been shared with them, leading to potential business disruption. This issue has been patched in version 1.99.1. A workaround involves restricting access to the /rest/executions/:id/stop endpoint via reverse proxy or API gateway.
https://github.com/n8n-io/n8n/security/advisories/GHSA-gq57-v332-7666
https://github.com/n8n-io/n8n/pull/16405
https://github.com/n8n-io/n8n/commit/e5edc60e344924230baafb11fa1f0af788e9ca9a
https://github.com/dudanogueira/n8n/commit/ca2f90c7fbaa1d661ade2f45d587d9469bc287e1
Published: 2025-07-03
Updated: 2025-07-08
Base Score: 4
Vector: CVSS2#AV:N/AC:L/Au:S/C:N/I:P/A:N
Severity: Medium
Base Score: 4.3
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
Severity: Medium
Base Score: 4.9
Vector: CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:H
Severity: Medium
EPSS: 0.00053