{"cve":"CVE-2021-22113","nvd":{"published":"2021-02-23T17:15:13.833","modified":"2026-06-17T03:36:38.373","status":"Modified","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.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N","score":5.3},"cwes":["CWE-863"],"references":["https://tanzu.vmware.com/security/cve-2021-22113","https://tanzu.vmware.com/security/cve-2021-22113"],"products":["vmware:spring_cloud_netflix_zuul"],"source":"nvd","synced_at":"2026-10-19T21:15:50.279857260+00:00"},"epss":{"cve":"CVE-2021-22113","score":0.00852,"percentile":0.58274,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-vwpg-f6gw-rjvf","url":"https://osv.dev/vulnerability/GHSA-vwpg-f6gw-rjvf","summary":"Incorrect Authorization in Spring Cloud Netflix Zuul","modified":"2024-12-02T05:42:35.143690Z","packages":[{"ecosystem":"Maven","name":"org.springframework.cloud:spring-cloud-netflix-zuul","purl":"pkg:maven/org.springframework.cloud/spring-cloud-netflix-zuul","ranges":["<2.2.7"],"fixed":["2.2.7"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}