---
id: CVE-2026-78428
title: >-
  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
summary: >-
  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
severity: high
cvss: 8
cvssVector: 'CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:N'
cwe:
  - CWE-384
vendor: go
product: neuvector
affected:
  - neuvector <5.6.1
published: '2026-09-17'
updated: '2026-09-18'
sourceUpdated: '2026-09-18T19:07:38.320'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-78428'
references:
  - url: 'https://bugzilla.suse.com/show_bug.cgi?id=1279937'
    label: meissner@suse.de
  - url: >-
      https://github.com/neuvector/neuvector/security/advisories/GHSA-c6rx-pmvf-m3jx
    label: meissner@suse.de
tags:
  - nvd
  - cve.org
epss: 0.00237
epssPercentile: 0.15013
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: total
  timestamp: '2026-09-17T12:15:03.788838Z'
ingestedAt: '2026-09-17T10:15:37.170Z'
---

## Overview

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

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.