{"id":"DEBIAN-CVE-2026-64607","details":"HttpClient based on the classic i/o model fails to correctly release the underlying connection back to the connection manager if it encounters an invalid or unsupported `Content-Encoding` header value in the response message. Please note this defect does not affect HttpClient based on the async i/o model.  This issue affects Apache HttpComponents Client: from 5.0-alpha1 through 5.6.2.","modified":"2026-09-01T16:06:56.761224468Z","published":"2026-07-31T11:17:11.710Z","upstream":["CVE-2026-64607"],"references":[{"type":"ADVISORY","url":"https://security-tracker.debian.org/tracker/CVE-2026-64607"}],"affected":[{"package":{"name":"commons-httpclient","ecosystem":"Debian:12","purl":"pkg:deb/debian/commons-httpclient?arch=source&distro=bookworm"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["3.1-16"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2026-64607.json"}},{"package":{"name":"commons-httpclient","ecosystem":"Debian:13","purl":"pkg:deb/debian/commons-httpclient?arch=source&distro=trixie"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["3.1-16"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2026-64607.json"}},{"package":{"name":"commons-httpclient","ecosystem":"Debian:14","purl":"pkg:deb/debian/commons-httpclient?arch=source&distro=forky"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["3.1-16"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2026-64607.json"}},{"package":{"name":"httpcomponents-client","ecosystem":"Debian:12","purl":"pkg:deb/debian/httpcomponents-client?arch=source&distro=bookworm"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["4.5.14-1"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2026-64607.json"}},{"package":{"name":"httpcomponents-client","ecosystem":"Debian:13","purl":"pkg:deb/debian/httpcomponents-client?arch=source&distro=trixie"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["4.5.14-1"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2026-64607.json"}},{"package":{"name":"httpcomponents-client","ecosystem":"Debian:14","purl":"pkg:deb/debian/httpcomponents-client?arch=source&distro=forky"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["4.5.14-1"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2026-64607.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L"}]}