What’s Vulnerable › Vulnerabilities

CVE-2021-22113

• Severity: medium (CVSS 5.3 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.9% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2021-02-23 · updated 2026-06-17
• Weakness: CWE-863

Description

Applications using the “Sensitive Headers” functionality in Spring Cloud Netflix Zuul 2.2.6.RELEASE and below may be vulnerable to bypassing the “Sensitive Headers” restriction when executing requests with specially constructed URLs. Applications that use Spring Security's StrictHttpFirewall (enabled by default for all URLs) are not affected by the vulnerability, as they reject requests that allow bypassing.

Affected products

• Spring Cloud Netflix Zuul: through 2.2.6
• Spring Cloud Netflix Zuul: through 2.2.6

References

• https://tanzu.vmware.com/security/cve-2021-22113
• https://tanzu.vmware.com/security/cve-2021-22113

Get alerted when CVE-2021-22113 or the next vulnerability affects your stack