CVE-2026-45732
n8n: Cross-user Authorization Bypass in Dynamic Credential OAuth Endpoints
Description
n8n is an open source workflow automation platform. Prior to 1.123.43, 2.22.1, and 2.20.7, the OAuth1 and OAuth2 credential reconnect endpoints authorized access using credential:read rather than credential:update. An authenticated user with read-only access to a shared credential could initiate an OAuth reconnect flow and overwrite the stored token material for that credential with tokens bound to an external account they control. Workflows relying on the affected credential would subsequently execute under the attacker's OAuth identity, enabling data exfiltration to attacker-controlled external services and persistent takeover of shared integrations. This vulnerability is fixed in 1.123.43, 2.22.1, and 2.20.7.
INFO
Published Date :
June 23, 2026, 3:52 p.m.
Last Modified :
June 23, 2026, 3:52 p.m.
Remotely Exploit :
No
Source :
GitHub_M
Affected Products
The following products are affected by CVE-2026-45732
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
No affected product recoded yet
Solution
- Update n8n to version 1.123.43 or later.
- Apply patches for versions 2.22.1 or 2.20.7 if applicable.
- Review and secure all shared credentials.
- Monitor integration activity for suspicious behavior.
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CVE-2026-45732 vulnerability anywhere in the article.