What’s Vulnerable › Vulnerabilities

CVE-2018-15754: UAA can issue tokens across identity providers if users with matching usernames exist

• Severity: high (CVSS 8.8 v3.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.8% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2018-12-13 · updated 2026-06-17
• Weakness: CWE-863

Description

Cloud Foundry UAA, versions 60 prior to 66.0, contain an authorization logic error. In environments with multiple identity providers that contain accounts across identity providers with the same username, a remote authenticated user with access to one of these accounts may be able to obtain a token for an account of the same username in the other identity provider.

Affected products

• Cloud Foundry UAA Release (OSS): from 60.0 before 66.0 — fixed in 66.0

How to fix

Upgrade to a fixed version: Cloud Foundry UAA Release (OSS) 66.0. Check the vendor advisory for mitigations.

References

• http://www.securityfocus.com/bid/106240
• https://www.cloudfoundry.org/blog/cve-2018-15754
• https://www.cloudfoundry.org/blog/cve-2018-15754/
• http://www.securityfocus.com/bid/106240
• https://www.cloudfoundry.org/blog/cve-2018-15754
• https://www.cloudfoundry.org/blog/cve-2018-15754/

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