Improper Verification of Cryptographic Signature Affecting @backstage/plugin-auth-node package, versions >=0.3.0 <0.6.15>=0.7.0 <0.7.5
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
Do your applications use this vulnerable package?
In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.
Test your applications- Snyk IDSNYK-JS-BACKSTAGEPLUGINAUTHNODE-20825511
- published11 Oct 2026
- disclosed7 Oct 2026
- creditUnknown
Introduced: 7 Oct 2026
NewCVE-2026-106460 (opens in a new tab)How to fix?
Upgrade @backstage/plugin-auth-node to version 0.6.15, 0.7.5 or higher.
Overview
Affected versions of this package are vulnerable to Improper Verification of Cryptographic Signature via PassportHelpers.ts in the makeProfileInfo function, which fails to check the verified flag on OAuth profile emails and the email_verified claim in ID tokens before accepting them as authenticated. An attacker who controls an OAuth provider account with an unverified email address can supply that email to impersonate another user or gain unauthorized access to resources tied to that email identity.