{"id":"UBUNTU-CVE-2026-116531","details":"HTTP::Body versions before 1.23_01 for Perl lose track of chunk boundaries in chunked request bodies when a read ends inside a chunk. In chunked mode, used when no content length is given, add() treats a chunk as complete once the buffer is as long as the chunk's declared size, but the buffer still holds the chunk-size line. When a read ends in the last bytes of a chunk, add() takes the chunk short and parses the leftover data as the next chunk-size line. A remote attacker can make a chunked body never complete, hanging a server that reads until the body is done, and may make it complete early, leaving the remaining bytes to be read as the next request.","modified":"2026-11-04T03:30:30.262029153Z","published":"2026-11-03T00:00:00Z","upstream":["CVE-2026-116531"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2026-116531"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2026-116531"},{"type":"REPORT","url":"https://lists.security.metacpan.org/cve-announce/msg/44711932/"},{"type":"REPORT","url":"https://github.com/libwww-perl/HTTP-Body/commit/5869dde9fe6d13f189a435b6583fd63fcc18677a.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_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-2026-116531.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_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-2026-116531.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-2026-116531.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_name":"libhttp-body-perl","binary_version":"1.22-1.1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-116531.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-2026-116531.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-2026-116531.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-2026-116531.json"}}],"schema_version":"1.9.2","severity":[{"type":"Ubuntu","score":"medium"}]}