CVE-2026-89042
The passport-saml-encrypted library (up to version 0.1.13) has a flaw that lets attackers bypass SAML signature checks. By sending unsigned SAML responses, an attacker can trick the system into authenticating them as any user, gaining access to protected profiles.
No official fix yet. If none appears within 45 days of first tracking, this entry is removed automatically.
Who is affected
Users of the passport-saml-encrypted Node.js library, versions 0.1.13 and earlier, that rely on it for SAML authentication.
Real-world impact
An attacker can forge SAML responses with any user identity and attributes, causing the application to accept them as valid logins. This results in unauthorized access to user accounts and potentially sensitive data.
Why this severity
The CVSS score of 9.3 reflects the high confidentiality and integrity impact of the vulnerability. Because authentication is bypassed without any user interaction, the attack is easy to execute and can compromise any protected data the application handles.
What to do about it
No official fix or mitigation is documented in the sources yet. Monitor the vendor advisory and apply the patch as soon as it is released.
No fix documented in sources