{"id":"CVE-2025-27820","aliases":["EUVD-2025-12102","GHSA-73m2-qfq3-56cx","UBUNTU-CVE-2025-27820"],"status":"published","title":"Apache HttpComponents: PSL (Public Suffix List) validation bypass","description":"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","severity":{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N","level":"high","assessor":"adp","from":"cve"},"epss":{"day":"2026-11-12","score":0.00966,"percentile":0.62198,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-295"],"published":"2025-04-24T11:44:25Z","modified":"2026-10-28T02:30:36Z","fixes":[{"ecosystem":"Maven","package":"org.apache.httpcomponents.client5:httpclient5","fixed_in":["5.4.3"],"sources":["ghsa","osv"]}],"affected":[{"source":"ghsa","ecosystem":"Maven","package":"org.apache.httpcomponents.client5:httpclient5","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"5.4-alpha1"},{"fixed":"5.4.3"}]}]},{"source":"osv","ecosystem":"Maven","package":"org.apache.httpcomponents.client5:httpclient5","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"5.4-alpha1"},{"fixed":"5.4.3"}]}],"versions":["5.4","5.4-alpha1","5.4-alpha2","5.4-beta1","5.4.1","5.4.2"]},{"source":"osv","ecosystem":"Ubuntu:Pro:14.04:LTS","package":"httpcomponents-client","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["4.2.5-2","4.3.2-1","4.3.3-1","4.3.3-1ubuntu0.1","4.3.3-1ubuntu0.1+esm1","4.3.3-1ubuntu0.1+esm2"]},{"source":"osv","ecosystem":"Ubuntu:Pro:16.04:LTS","package":"httpcomponents-client","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["4.4.1-1","4.5.1-1","4.5.1-1ubuntu0.1~esm1"]},{"source":"osv","ecosystem":"Ubuntu:Pro:18.04:LTS","package":"httpcomponents-client","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["4.5.3-1","4.5.4-1","4.5.5-1","4.5.5-1ubuntu0.1~esm1"]},{"source":"osv","ecosystem":"Ubuntu:Pro:20.04:LTS","package":"httpcomponents-client","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["4.5.9-1","4.5.10-2","4.5.11-1","4.5.11-1ubuntu0.1~esm1"]},{"source":"osv","ecosystem":"Ubuntu:22.04:LTS","package":"httpcomponents-client","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["4.5.13-2","4.5.13-3"]},{"source":"osv","ecosystem":"Ubuntu:24.04:LTS","package":"httpcomponents-client","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["4.5.14-1"]},{"source":"osv","ecosystem":"Ubuntu:25.10","package":"httpcomponents-client","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["4.5.14-1"]},{"source":"osv","ecosystem":"Ubuntu:26.10","package":"httpcomponents-client","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["4.5.14-1build1"]},{"source":"osv","ecosystem":"Ubuntu:26.04:LTS","package":"httpcomponents-client","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["4.5.14-1","4.5.14-1build1"]}],"products":[{"vendor":"apache","product":"httpclient"},{"vendor":"apache software foundation","product":"apache httpcomponents"},{"vendor":"netapp","product":"ontap_tools"}],"references":[{"url":"https://github.com/apache/httpcomponents-client/pull/574","tags":["patch","Issue Tracking","Patch","fix","web","report"]},{"url":"https://github.com/apache/httpcomponents-client/pull/621","tags":["patch","Issue Tracking","Patch","fix","web","report"]},{"url":"https://hc.apache.org/httpcomponents-client-5.4.x/index.html","tags":["product","Product","web","report"]},{"url":"https://lists.apache.org/thread/55xhs40ncqv97qvoocok44995xp5kqn8","tags":["vendor-advisory","Mailing List","Patch","advisory","web","report"]},{"url":"https://security.netapp.com/advisory/ntap-20250516-0003/","tags":["Third Party Advisory","advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2025-27820","tags":["advisory"]},{"url":"https://security.netapp.com/advisory/ntap-20250516-0003","tags":["web"]},{"url":"https://github.com/advisories/GHSA-73m2-qfq3-56cx"},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/27xxx/CVE-2025-27820.json","tags":["advisory"]},{"url":"https://github.com/apache/httpcomponents-client","tags":["package"]},{"url":"https://ubuntu.com/security/CVE-2025-27820","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2025-27820","tags":["report"]}],"sources":{"cve":[{"id":"CVE-2025-27820","title":"Apache HttpComponents: PSL (Public Suffix List) validation bypass","description":"A bug in PSL validation logic in Apache HttpClient 5.4.x disables domain checks, affecting cookie management and host name verification. 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Fixed in the 5.4.3 release","status":"published","published":"2025-04-24T11:44:25Z","modified":"2025-06-04T11:20:12Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N","level":"high"}],"updated_at":"2026-11-02T20:32:30.496028Z"}],"ghsa":[{"id":"GHSA-73m2-qfq3-56cx","title":"Apache HttpClient disables domain checks","description":"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.","status":"published","published":"2025-04-24T12:31:28Z","modified":"2025-05-17T00:31:31Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N","level":"high"}],"cwes":["CWE-295"],"updated_at":"2026-11-02T14:38:43.998596Z"}],"nvd":[{"id":"CVE-2025-27820","description":"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","status":"published","published":"2025-04-24T12:15:16.723Z","modified":"2026-06-17T09:04:16.777Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N","level":"high","assessor":"secondary"}],"cwes":["CWE-295"],"updated_at":"2026-11-02T14:11:01.507281Z"}],"osv":[{"id":"CVE-2025-27820","title":"Apache HttpComponents: PSL (Public Suffix List) validation bypass","description":"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","status":"published","published":"2025-04-24T11:44:25.986Z","modified":"2026-10-28T02:30:36.279930039Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N","level":"high"}],"updated_at":"2026-11-02T15:44:47.708311Z"},{"id":"GHSA-73m2-qfq3-56cx","title":"Apache HttpClient disables domain checks","description":"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. 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