{"id":"CVE-2025-27820","aliases":["GHSA-73m2-qfq3-56cx"],"url":"https://o3.security/vulnerability/CVE-2025-27820","summary":"Apache HttpComponents: PSL (Public Suffix List) validation bypass","details":"A bug in PSL validation logic in Apache HttpClient 5.4.x disables domain checks, affecting cookie management and host name verification. Discovered by the Apache HttpClient team. Fixed in the 5.4.3 release","published":"2025-04-24T11:44:25.986Z","modified":"2026-08-12T03:51:20.234343519Z","cvss":{"score":7.5,"severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N"},"epss":{"score":0.00891,"percentile":0.56677,"asOf":"2026-08-24"},"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"Maven","name":"org.apache.httpcomponents.client5:httpclient5","fixedVersion":"5.4.3"}],"fix":{"url":"https://github.com/apache/httpcomponents-client/pull/574","label":"apache/httpcomponents-client#574"},"references":[{"type":"WEB","url":"https://hc.apache.org/httpcomponents-client-5.4.x/index.html"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/27xxx/CVE-2025-27820.json"},{"type":"ADVISORY","url":"https://lists.apache.org/thread/55xhs40ncqv97qvoocok44995xp5kqn8"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2025-27820"},{"type":"ADVISORY","url":"https://security.netapp.com/advisory/ntap-20250516-0003/"},{"type":"FIX","url":"https://github.com/apache/httpcomponents-client/pull/574"},{"type":"FIX","url":"https://github.com/apache/httpcomponents-client/pull/621"},{"type":"PACKAGE","url":"https://github.com/apache/httpcomponents-client"},{"type":"WEB","url":"https://security.netapp.com/advisory/ntap-20250516-0003"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-12T03:51:20.234343519Z"}}