CVE-2026-15640

9.5 criticalEPSS 0.3%

Critical (9.5). EPSS 0.3% chance of exploitation in the next 30 days.

Under certain conditions a valid SAML IdP response may be used to impersonate another Secret Server user.

Severity

9.5 critical

CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:H/VI:H/VA:N/SC:H/SI:H/SA:H

EPSS: 0.3% chance of exploitation in the next 30 days; higher than 24% of CVEs (scores of 2026-10-31)
CWE: CWE-290
Published: 2026-09-16
Modified: 2026-09-18
Record from: the NVD, synced 2026-10-19