CVE-2026-110846CWE-180

CVE-2026-110846

published October 15, 2026

CVSS
7.0
EPSS
1%
Percentile
42.7
In the wild
Unconfirmed
What it is

n8n before 2.41.4 and 2.42.x before 2.42.1 contains a signature bypass in the waiting-webhook endpoint, which selects Send-and-Wait validation before normalising an alternate node reference form. Attackers holding an execution's resume token can approve waiting executions meant for others, running downstream actions under the workflow owner's credentials, potentially including command execution.

The record
Technical detail
CVSS
7.0 · NONE
CVSS v4.0
7.0 · CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:L/VA:N/SC:H/SI:H/SA:N
EPSS
0.00511 · 42.7th percentile
Weakness
CWE-180 · Incorrect Behavior Order: Validate Before Canonicalize
Published
2026-10-15T03:17Z
References (2)
https://github.com/n8n-io/n8n/security/advisories/GHSA-728h-pmr2-7cgh · [email protected]https://www.vulncheck.com/advisories/n8n-before-2.41.4-and-2.42.1-send-and-wait-hmac-signature-bypass-via-waiting-webhook · [email protected]
EPSS history
Timeline
  • 16 OCT 03:27Z
    EPSS moved — → 1%
    epss
  • 14 OCT 22:52Z
    n8n before 2.41.4 and 2.42.1 Send-and-Wait HMAC Signature Bypass via Waiting-Webhook
    cvelistv5
  • 14 OCT 22:52Z
    n8n before 2.41.4 and 2.42.1 Send-and-Wait HMAC Signature Bypass via Waiting-Webhook
    cvelistv5