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CVE-2026-22734

Cloud Foundry UAA SAML 2.0 Signature Bypass

Published: Apr 16, 2026Updated: Apr 17, 2026 Sources: CVE List NVD
NVD MITRE
8.6CVSS
HIGH

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).

EPSS Score
0.0%
Top 97.8%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
No Fix Available

CVSS Vector Breakdown

AV:NAC:LPR:NUI:NS:CC:HI:NA:N
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:CScope
Changed
Impact
C:HConfidentiality
High
I:NIntegrity
None
A:NAvailability
None

Weaknesses

CWE-290

Affected Products

UUA
Cloud Foundry

Attack Graph

Products CVE Techniques Tactics

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Exploitability

No known exploits, KEV entries, or remediation guidance available for this vulnerability yet.

MITRE ATT&CK

1 technique
Initial Access
View detailed technique mapping

References

https://www.cloudfoundry.org/blog/cve-2026-22734-uaa-saml-2-0-signature-bypass/
cloudfoundry.org

Timeline

Published
Apr 16, 2026
Last Updated
Apr 17, 2026

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