What’s Vulnerable › Vulnerabilities

CVE-2021-22053

• Severity: high (CVSS 8.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 13.2% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2021-11-19 · updated 2026-06-17
• Weakness: CWE-94

Description

Applications using both `spring-cloud-netflix-hystrix-dashboard` and `spring-boot-starter-thymeleaf` expose a way to execute code submitted within the request URI path during the resolution of view templates. When a request is made at `/hystrix/monitor;[user-provided data]`, the path elements following `hystrix/monitor` are being evaluated as SpringEL expressions, which can lead to code execution.

Affected products

• Spring Cloud Netflix: from 2.2.0 before 2.2.10 — fixed in 2.2.10
• Spring Cloud Netflix: from Spring Cloud Netflix versions 2.2.x prior through 2.2.10.Release + and old unsupported versions

How to fix

Upgrade to a fixed version: Spring Cloud Netflix 2.2.10. Check the vendor advisory for mitigations.

References

• https://tanzu.vmware.com/security/cve-2021-22053
• https://tanzu.vmware.com/security/cve-2021-22053

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