CVE-2026-118676

medium

Description

n8n before 1.123.85, 2.43.5, and 2.44.1 contains an authorization bypass vulnerability that allows member users to use credentials they cannot access by omitting default node parameters. Attackers can save and run workflows where pre-execution checks skip credential slots, causing decrypted credential values to be sent to attacker-chosen destinations.

References

https://www.vulncheck.com/advisories/n8n-before-1.123.85-2.43.5-and-2.44.1-credential-permission-check-bypass

https://github.com/n8n-io/n8n/security/advisories/GHSA-v9cx-v88r-42vw

https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-112382

Details

Source: Mitre, NVD

Published: 2026-10-28

Updated: 2026-10-28

Risk Information

CVSS v2

Base Score: 5.6

Vector: CVSS2#AV:N/AC:H/Au:S/C:C/I:P/A:N

Severity: Medium

CVSS v3

Base Score: 7.1

Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:L/A:N

Severity: High

CVSS v4

Base Score: 5.1

Vector: CVSS:4.0/AV:N/AC:H/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:H/SI:L/SA:N

Severity: Medium

EPSS

EPSS: 0.002