CVE-2026-22734CWE-290

Cloud Foundry UAA SAML 2.0 Signature Bypass

High · published April 16, 2026

CVSS v3.1
8.6
EPSS
0%
Percentile
29.0
In the wild
Unconfirmed
What it is

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 nor encrypted. This issue affects UUA from v77.30.0 to v78.7.0 (inclusive) and it affects CF Deployment from v48.7.0 to v54.14.0 (inclusive).

The record
Technical detail
CVSS v3.1
8.6 · HIGH
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N
CVSS v4.0
Not supplied
EPSS
0.00364 · 29.0th percentile
Weakness
CWE-290 · Authentication Bypass by Spoofing
Published
2026-04-16T23:33Z
EPSS history
Timeline
  • 16 APR 23:33Z
    Cloud Foundry UAA SAML 2.0 Signature Bypass
    cvelistv5