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Vulnerability record · CVE-2026-78428 · published 17 September 2026

CVE-2026-78428: For users authenticated through SAML or OpenID Connect (OIDC), this vulnerability can result in one user recei…

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

8.0 CVSS 3.1 High EPSS 0.32% · top 77.4% CWE-384 · CWE-384 Awaiting Analysis
8.0CVSS 3.1 base score
0.32%EPSS exploitation probability, 30 days
NoNot in CISA KEV
0Affected product versions listed by NVD
2References
18 Sep 2026Last modified by NVD

Description

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:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:N

References

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Source: NIST National Vulnerability Database (record CVE-2026-78428), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.