{"id":"DEBIAN-CVE-2026-59882","details":"guzzlehttp/psr7 is a PSR-7 HTTP message library implementation in PHP. Prior to 2.12.3, Uri::assertValidHost() does not reject URI host components containing authority delimiters, embedded ports, or malformed IPv6 brackets, allowing Uri::getHost() to disagree with the URI authority used for security or routing decisions. This issue is fixed in version 2.12.3.","modified":"2026-08-04T06:08:03.440035680Z","published":"2026-07-08T17:17:26.597Z","upstream":["CVE-2026-59882"],"references":[{"type":"ADVISORY","url":"https://security-tracker.debian.org/tracker/CVE-2026-59882"}],"affected":[{"package":{"name":"php-guzzlehttp-psr7","ecosystem":"Debian:11","purl":"pkg:deb/debian/php-guzzlehttp-psr7?arch=source&distro=bullseye"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.7.0-1","1.7.0-1+deb11u1","1.7.0-1+deb11u2","1.8.1-1","1.8.3-1","1.8.5-1","2.0.0-1","2.0.0~beta1-1","2.0.0~rc1-1","2.1.0-1","2.10.3-1","2.10.4-1","2.11.0-1","2.12.0-1","2.12.1-1","2.12.3-1","2.12.4-1","2.12.5-1","2.13.0-1","2.2.1-1","2.3.0-1","2.4.0-1","2.4.0-2","2.4.1-1","2.4.3-1","2.4.4-1","2.4.5-1","2.5.0-1","2.6.0-1","2.6.1-1","2.6.2-1","2.6.2-2","2.6.2-3","2.7.0-1","2.7.0-2","2.7.0-3","2.7.1-1","2.8.0-1","2.8.0-2","2.9.0-1","2.9.0-2","3.0.0-1"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-59882.json"}},{"package":{"name":"php-guzzlehttp-psr7","ecosystem":"Debian:12","purl":"pkg:deb/debian/php-guzzlehttp-psr7?arch=source&distro=bookworm"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.10.3-1","2.10.4-1","2.11.0-1","2.12.0-1","2.12.1-1","2.12.3-1","2.12.4-1","2.12.5-1","2.13.0-1","2.4.5-1","2.4.5-1+deb12u1","2.5.0-1","2.6.0-1","2.6.1-1","2.6.2-1","2.6.2-2","2.6.2-3","2.7.0-1","2.7.0-2","2.7.0-3","2.7.1-1","2.8.0-1","2.8.0-2","2.9.0-1","2.9.0-2","3.0.0-1"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-59882.json"}},{"package":{"name":"php-guzzlehttp-psr7","ecosystem":"Debian:13","purl":"pkg:deb/debian/php-guzzlehttp-psr7?arch=source&distro=trixie"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.10.3-1","2.10.4-1","2.11.0-1","2.12.0-1","2.12.1-1","2.12.3-1","2.12.4-1","2.12.5-1","2.13.0-1","2.7.1-1","2.7.1-1+deb13u1","2.7.1-1+deb13u2","2.8.0-1","2.8.0-2","2.9.0-1","2.9.0-2","3.0.0-1"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-59882.json"}},{"package":{"name":"php-guzzlehttp-psr7","ecosystem":"Debian:14","purl":"pkg:deb/debian/php-guzzlehttp-psr7?arch=source&distro=forky"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.12.3-1"}]}],"versions":["2.10.3-1","2.10.4-1","2.11.0-1","2.12.0-1","2.12.1-1","2.7.1-1","2.8.0-1","2.8.0-2","2.9.0-1","2.9.0-2"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-59882.json"}}],"schema_version":"1.8.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N"}]}