CVE-2026-22734: Authentication Bypass by Spoofing

Cloud Foundry UUA is vulnerable to a bypass that allows an attacker to obtain a token for any user and gain access to UAA-protected systems. This vulnerability exists when SAML 2.0 bearer assertions are enabled for a client, as the UAA accepts SAML 2.0 bearer assertions that are neither signed no...

CVE-2026-22734 - UAA SAML 2.0 Signature Bypass | Cloud Foundry

Severity 8.8 / High CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:L/VA:N/SC:L/SI:L/SA:N 8.6 / HIGH CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N Vendor CloudFoundry Foundation Description Cloud Foundry UAA versions v77.21.0 through v78.8.0 are vulnerable to a bypass that allows an attacker to obtain a...