CVE-2026-118676
n8n before 1.123.85, 2.43.5, and 2.44.1 Credential Permission Check Bypass
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.
Fixes and workarounds
No remediation reported in collected sources.
Missing remediation information is not evidence that no patch exists.
Affected products and versions
| Product | Versions | Authority |
|---|---|---|
| n8n n8n-io n8n
npm |
≥ 0; < 1.123.85 (affected, semver) 1.123.85 (unaffected, semver) Other versions: unaffected |
CNA: VulnCheck |
| n8n n8n-io n8n
npm |
≥ 2.44.0; < 2.44.1 (affected, semver) 2.44.1 (unaffected, semver) Other versions: unaffected |
CNA: VulnCheck |
| n8n n8n-io n8n
npm |
≥ 2.0.0; < 2.43.5 (affected, semver) 2.43.5 (unaffected, semver) Other versions: unaffected |
CNA: VulnCheck |
Version ranges are source assertions. Check the vendor advisory and your installed configuration before determining exposure.
CVSS assessments
| Version / score | Vector | Authority |
|---|---|---|
| 4.0 / 5.1 medium |
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 | CNA: VulnCheck |
| 3.1 / 7.1 high |
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:L/A:N | CNA: VulnCheck |
Exploit evidence
No exploit evidence in collected sources. This is not proof of no exploitation.
References
- https://github.com/n8n-io/n8n/security/advisories/GHSA-v9cx-v88r-42vwCNA: VulnCheck · vendor-advisory
- https://www.vulncheck.com/advisories/n8n-before-1.123.85-2.43.5-and-2.44.1-credential-permission-check-bypassCNA: VulnCheck · third-party-advisory
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