{"cve":"CVE-2017-7674","nvd":{"published":"2017-08-11T02:29:00.287","modified":"2026-10-15T16:17:28.663","status":"Modified","description":"The CORS Filter in Apache Tomcat 9.0.0.M1 to 9.0.0.M21, 8.5.0 to 8.5.15, 8.0.0.RC1 to 8.0.44 and 7.0.41 to 7.0.78 did not add an HTTP Vary header indicating that the response varies depending on Origin. This permitted client and server side cache poisoning in some circumstances.","cvss_v4":null,"cvss_v3":{"version":"3.0","vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N","score":4.3},"cwes":["CWE-345"],"references":["http://www.debian.org/security/2017/dsa-3974","http://www.oracle.com/technetwork/security-advisory/cpuapr2018-3678067.html","http://www.securityfocus.com/bid/100280","https://access.redhat.com/errata/RHSA-2017:1801","https://access.redhat.com/errata/RHSA-2017:1802"],"products":["apache:tomcat"],"source":"nvd","synced_at":"2026-10-19T20:44:47.710380879+00:00"},"epss":{"cve":"CVE-2017-7674","score":0.08037,"percentile":0.94745,"date":"2026-10-25"},"kev":null,"osv":[{"id":"GHSA-73rx-3f9r-x949","url":"https://osv.dev/vulnerability/GHSA-73rx-3f9r-x949","summary":"Insufficient Verification of Data Authenticity in Apache Tomcat","modified":"2024-03-11T05:31:12.135729Z","packages":[{"ecosystem":"Maven","name":"org.apache.tomcat:tomcat","purl":"pkg:maven/org.apache.tomcat/tomcat","ranges":[">=9.0.0.M1 <9.0.0.M22"],"fixed":["9.0.0.M22"]},{"ecosystem":"Maven","name":"org.apache.tomcat:tomcat","purl":"pkg:maven/org.apache.tomcat/tomcat","ranges":[">=8.5.0 <8.5.16"],"fixed":["8.5.16"]},{"ecosystem":"Maven","name":"org.apache.tomcat:tomcat","purl":"pkg:maven/org.apache.tomcat/tomcat","ranges":[">=8.0.0.RC1 <8.0.45"],"fixed":["8.0.45"]},{"ecosystem":"Maven","name":"org.apache.tomcat:tomcat","purl":"pkg:maven/org.apache.tomcat/tomcat","ranges":[">=7.0.41 <7.0.79"],"fixed":["7.0.79"]}]}],"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."]}