What’s Vulnerable › Vulnerabilities

CVE-2021-22098

• Severity: medium (CVSS 6.1 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.7% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2021-08-11 · updated 2026-06-17
• Weakness: CWE-601

Description

UAA server versions prior to 75.4.0 are vulnerable to an open redirect vulnerability. A malicious user can exploit the open redirect vulnerability by social engineering leading to take over of victims’ accounts in certain cases along with redirection of UAA users to a malicious sites.

Affected products

• Cloud Foundry cf-deployment: before 16.20.0 — fixed in 16.20.0
• Cloudfoundry User Account And Authentication: before 75.5.0 — fixed in 75.5.0

How to fix

Upgrade to a fixed version: Cloud Foundry cf-deployment 16.20.0; Cloudfoundry User Account And Authentication 75.5.0. Check the vendor advisory for mitigations.

References

• https://www.cloudfoundry.org/blog/cve-2021-22098-open-redirect-vulnerability-in-uaa-server/
• https://www.cloudfoundry.org/blog/cve-2021-22098-open-redirect-vulnerability-in-uaa-server/

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