CVE-2026-118676

High

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.

SeverityHigh

CVSS7.1

Exploit probability—

ProductN8n

PublishedOct 28, 2026

First seenNov 4, 2026

Weakness typeCWE-863Incorrect authorization

How to fix

Update

n8n-io n8n1.123.85, 2.44.1, 2.43.5 or later

Vendor advisories

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

Affected products

Product	Affected versions	Fixed in
n8n-io n8n	v < 1.123.85, 2.44.0 ≤ v < 2.44.1, 2.0.0 ≤ v < 2.43.5	1.123.85, 2.44.1, 2.43.5

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