{"id":"UBUNTU-CVE-2025-27820","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","modified":"2026-05-20T16:21:01.705043635Z","published":"2025-04-24T12:15:00Z","upstream":["CVE-2025-27820"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2025-27820"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2025-27820"},{"type":"REPORT","url":"https://lists.apache.org/thread/55xhs40ncqv97qvoocok44995xp5kqn8"},{"type":"REPORT","url":"https://github.com/apache/httpcomponents-client/pull/574"},{"type":"REPORT","url":"https://github.com/apache/httpcomponents-client/pull/621"},{"type":"REPORT","url":"https://hc.apache.org/httpcomponents-client-5.4.x/index.html"}],"affected":[{"package":{"name":"httpcomponents-client","ecosystem":"Ubuntu:Pro:14.04:LTS","purl":"pkg:deb/ubuntu/httpcomponents-client?arch=source&distro=esm-infra-legacy%2Ftrusty"},"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"],"ecosystem_specific":{"binaries":[{"binary_name":"libhttpclient-java","binary_version":"4.3.3-1ubuntu0.1+esm2"},{"binary_name":"libhttpmime-java","binary_version":"4.3.3-1ubuntu0.1+esm2"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-27820.json"}},{"package":{"name":"httpcomponents-client","ecosystem":"Ubuntu:Pro:16.04:LTS","purl":"pkg:deb/ubuntu/httpcomponents-client?arch=source&distro=esm-apps%2Fxenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["4.4.1-1","4.5.1-1","4.5.1-1ubuntu0.1~esm1"],"ecosystem_specific":{"binaries":[{"binary_name":"libhttpclient-java","binary_version":"4.5.1-1ubuntu0.1~esm1"},{"binary_name":"libhttpmime-java","binary_version":"4.5.1-1ubuntu0.1~esm1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-27820.json"}},{"package":{"name":"httpcomponents-client","ecosystem":"Ubuntu:Pro:18.04:LTS","purl":"pkg:deb/ubuntu/httpcomponents-client?arch=source&distro=esm-apps%2Fbionic"},"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"],"ecosystem_specific":{"binaries":[{"binary_name":"libhttpclient-java","binary_version":"4.5.5-1ubuntu0.1~esm1"},{"binary_name":"libhttpmime-java","binary_version":"4.5.5-1ubuntu0.1~esm1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-27820.json"}},{"package":{"name":"httpcomponents-client","ecosystem":"Ubuntu:Pro:20.04:LTS","purl":"pkg:deb/ubuntu/httpcomponents-client?arch=source&distro=esm-apps%2Ffocal"},"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"],"ecosystem_specific":{"binaries":[{"binary_name":"libhttpclient-java","binary_version":"4.5.11-1ubuntu0.1~esm1"},{"binary_version":"4.5.11-1ubuntu0.1~esm1","binary_name":"libhttpmime-java"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-27820.json"}},{"package":{"name":"httpcomponents-client","ecosystem":"Ubuntu:22.04:LTS","purl":"pkg:deb/ubuntu/httpcomponents-client?arch=source&distro=jammy"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["4.5.13-2","4.5.13-3"],"ecosystem_specific":{"binaries":[{"binary_name":"libhttpclient-java","binary_version":"4.5.13-3"},{"binary_name":"libhttpmime-java","binary_version":"4.5.13-3"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-27820.json"}},{"package":{"name":"httpcomponents-client","ecosystem":"Ubuntu:24.04:LTS","purl":"pkg:deb/ubuntu/httpcomponents-client?arch=source&distro=noble"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["4.5.14-1"],"ecosystem_specific":{"binaries":[{"binary_version":"4.5.14-1","binary_name":"libhttpclient-java"},{"binary_version":"4.5.14-1","binary_name":"libhttpmime-java"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-27820.json"}},{"package":{"name":"httpcomponents-client","ecosystem":"Ubuntu:25.10","purl":"pkg:deb/ubuntu/httpcomponents-client?arch=source&distro=questing"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["4.5.14-1"],"ecosystem_specific":{"binaries":[{"binary_version":"4.5.14-1","binary_name":"libhttpclient-java"},{"binary_name":"libhttpmime-java","binary_version":"4.5.14-1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-27820.json"}},{"package":{"name":"httpcomponents-client","ecosystem":"Ubuntu:26.04:LTS","purl":"pkg:deb/ubuntu/httpcomponents-client?arch=source&distro=resolute"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["4.5.14-1","4.5.14-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