Vulnerability in Go Neuvector

CVE-2026-78428

For users authenticated through SAML or OpenID Connect (OIDC), this vulnerability can result in one user receiving another user's authenticated session when multiple SSO login attempts occur concurrently

CVSS v3 metric

CVSS v3 base score 8.0 (High). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:N.

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-78428?
CVE-2026-78428 is a high-severity vulnerability in Go Neuvector, classified under Session Fixation. CVSS score: 8.0/10. Published 2026-09-17.
How severe is CVE-2026-78428?
High severity. CVSS v3 base score is 8.0 out of 10.