CVE-2026-78425 SAML Audience Confusion Allows Cross-SP Authentication
Attackers with valid SAML accounts on other corporate apps can bypass authentication and access NeuVector due to ignored audience validation.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-78425?
CVE-2026-78425 is a high-severity authentication bypass vulnerability in SUSE github.com/neuvector/neuvector, published on 17 Sep 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
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.
Weakness: CWE-287
Which versions are affected by CVE-2026-78425?
How do I fix CVE-2026-78425?
No fix has been published for CVE-2026-78425 yet. Limit exposure of the affected software until one is available.
Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.
Is CVE-2026-78425 being exploited?
There is no known exploitation of CVE-2026-78425 in the wild and no public exploit code.
Sources
Also known as GHSA-wgg5-24xq-px35.