CVE-2026-78425: SAML Audience Confusion Allows Cross-SP Authentication
Authorised users of outside applications behind the same corporate identity provider (IdP), for example, a wiki, a ticketing system, an expenses tool, or anything they legitimately hold an account on can log into their system via SAML SSO. The IdP issues an assertion to them. If that assertion is presented to NeuVector, NeuVector accepts it because the only thing distinguishing "an assertion for NeuVector" from "an assertion for the wiki" is the element, and the NotInAudience warning that reports the mismatch is never read.
Affected Software
Event History
Frequently Asked Questions
Which deployments are exposed?
NeuVector deployments that use SAML SSO with a corporate IdP shared by other applications are exposed to this assertion audience mismatch.
Does an attacker need an existing NeuVector account?
No. An authorized user of another application behind the same IdP can obtain a SAML assertion for that application and present it to NeuVector.