{"id":"UBUNTU-CVE-2026-116285","details":"HTTP::Body versions before 1.23_01 for Perl allow CPU exhaustion via quadratic regex backtracking when parsing chunked request bodies. In chunked mode, used when no content length is given, add() matches each chunk-size line with `/^([\\da-fA-F]+).*\\x0D\\x0A/`. On a line of hex digits whose first LF has no CR before it, the digits and `.*` backtrack against each other, so a single add() takes time quadratic in the line's length. Nothing limits how long the line can be. A remote attacker can exhaust CPU in applications that pass chunked request bodies to HTTP::Body.","modified":"2026-11-04T03:30:34.571817308Z","published":"2026-11-03T00:00:00Z","upstream":["CVE-2026-116285"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2026-116285"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2026-116285"},{"type":"REPORT","url":"https://lists.security.metacpan.org/cve-announce/msg/44711941/"},{"type":"REPORT","url":"https://github.com/libwww-perl/HTTP-Body/commit/954a5343d2a095b59d357f28759c5388d1169574.patch"},{"type":"REPORT","url":"https://metacpan.org/release/GETTY/HTTP-Body-1.24/changes"}],"affected":[{"package":{"name":"libhttp-body-perl","ecosystem":"Ubuntu:16.04:LTS","purl":"pkg:deb/ubuntu/libhttp-body-perl?arch=source&distro=xenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.22-1"],"ecosystem_specific":{"binaries":[{"binary_version":"1.22-1","binary_name":"libhttp-body-perl"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-116285.json"}},{"package":{"name":"libhttp-body-perl","ecosystem":"Ubuntu:18.04:LTS","purl":"pkg:deb/ubuntu/libhttp-body-perl?arch=source&distro=bionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.22-1"],"ecosystem_specific":{"binaries":[{"binary_name":"libhttp-body-perl","binary_version":"1.22-1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-116285.json"}},{"package":{"name":"libhttp-body-perl","ecosystem":"Ubuntu:20.04:LTS","purl":"pkg:deb/ubuntu/libhttp-body-perl?arch=source&distro=focal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.22-1"],"ecosystem_specific":{"binaries":[{"binary_version":"1.22-1","binary_name":"libhttp-body-perl"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-116285.json"}},{"package":{"name":"libhttp-body-perl","ecosystem":"Ubuntu:22.04:LTS","purl":"pkg:deb/ubuntu/libhttp-body-perl?arch=source&distro=jammy"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.22-1.1"],"ecosystem_specific":{"binaries":[{"binary_version":"1.22-1.1","binary_name":"libhttp-body-perl"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-116285.json"}},{"package":{"name":"libhttp-body-perl","ecosystem":"Ubuntu:24.04:LTS","purl":"pkg:deb/ubuntu/libhttp-body-perl?arch=source&distro=noble"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.22-2"],"ecosystem_specific":{"binaries":[{"binary_name":"libhttp-body-perl","binary_version":"1.22-2"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-116285.json"}},{"package":{"name":"libhttp-body-perl","ecosystem":"Ubuntu:26.10","purl":"pkg:deb/ubuntu/libhttp-body-perl?arch=source&distro=stonking"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.23-1"],"ecosystem_specific":{"binaries":[{"binary_name":"libhttp-body-perl","binary_version":"1.23-1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-116285.json"}},{"package":{"name":"libhttp-body-perl","ecosystem":"Ubuntu:26.04:LTS","purl":"pkg:deb/ubuntu/libhttp-body-perl?arch=source&distro=resolute"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.23-1"],"ecosystem_specific":{"binaries":[{"binary_name":"libhttp-body-perl","binary_version":"1.23-1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-116285.json"}}],"schema_version":"1.9.2","severity":[{"type":"Ubuntu","score":"medium"}]}