{"id":"UBUNTU-CVE-2026-115865","details":"Starlet versions before 0.33 for Perl allow a request declaring a large Content-Length to kill a worker by exhausting memory. The request body is read in a loop that asks sysread for all of the remaining declared length at once. Perl grows the read buffer to that size before any data arrives, so a length larger than available memory makes the worker exit with an uncatchable out of memory error before the application is called. A remote attacker can force a worker restart with each request of a few bytes.","modified":"2026-11-04T03:30:24.759533020Z","published":"2026-11-03T00:00:00Z","upstream":["CVE-2026-115865"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2026-115865"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2026-115865"},{"type":"REPORT","url":"https://lists.security.metacpan.org/cve-announce/msg/44760439/"},{"type":"REPORT","url":"https://github.com/kazuho/Starlet/commit/598947ac620fd31b390335c683d79fa244770782.patch"},{"type":"REPORT","url":"https://metacpan.org/release/KAZUHO/Starlet-0.33/changes"}],"affected":[{"package":{"name":"starlet","ecosystem":"Ubuntu:16.04:LTS","purl":"pkg:deb/ubuntu/starlet?arch=source&distro=xenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.25-1","0.26-1","0.28-1"],"ecosystem_specific":{"binaries":[{"binary_version":"0.28-1","binary_name":"starlet"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-115865.json"}},{"package":{"name":"starlet","ecosystem":"Ubuntu:18.04:LTS","purl":"pkg:deb/ubuntu/starlet?arch=source&distro=bionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.31-1"],"ecosystem_specific":{"binaries":[{"binary_name":"starlet","binary_version":"0.31-1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-115865.json"}},{"package":{"name":"starlet","ecosystem":"Ubuntu:20.04:LTS","purl":"pkg:deb/ubuntu/starlet?arch=source&distro=focal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.31-1"],"ecosystem_specific":{"binaries":[{"binary_name":"starlet","binary_version":"0.31-1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-115865.json"}},{"package":{"name":"starlet","ecosystem":"Ubuntu:22.04:LTS","purl":"pkg:deb/ubuntu/starlet?arch=source&distro=jammy"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.31-1.1"],"ecosystem_specific":{"binaries":[{"binary_version":"0.31-1.1","binary_name":"starlet"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-115865.json"}},{"package":{"name":"starlet","ecosystem":"Ubuntu:24.04:LTS","purl":"pkg:deb/ubuntu/starlet?arch=source&distro=noble"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.31-2"],"ecosystem_specific":{"binaries":[{"binary_name":"starlet","binary_version":"0.31-2"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-115865.json"}},{"package":{"name":"starlet","ecosystem":"Ubuntu:26.10","purl":"pkg:deb/ubuntu/starlet?arch=source&distro=stonking"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.31-2build1","0.31-3","0.32-1"],"ecosystem_specific":{"binaries":[{"binary_name":"starlet","binary_version":"0.32-1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-115865.json"}},{"package":{"name":"starlet","ecosystem":"Ubuntu:26.04:LTS","purl":"pkg:deb/ubuntu/starlet?arch=source&distro=resolute"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.31-2","0.31-2build1"],"ecosystem_specific":{"binaries":[{"binary_version":"0.31-2build1","binary_name":"starlet"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-115865.json"}}],"schema_version":"1.9.2","severity":[{"type":"Ubuntu","score":"medium"}]}