{"id":"UBUNTU-CVE-2026-88350","details":"An integer overflow vulnerability exists in MPack 1.1.1 in mpack_node_cstr_alloc() and mpack_node_utf8_cstr_alloc().","modified":"2026-09-24T02:01:06.059807943Z","published":"2026-09-22T20:17:00Z","upstream":["CVE-2026-88350"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2026-88350"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2026-88350"},{"type":"REPORT","url":"https://github.com/ludocode/mpack/issues/124"},{"type":"REPORT","url":"https://github.com/ludocode/mpack/commit/3d54d1215bdb5478d3ddecaf85884c58b382cd9b"}],"affected":[{"package":{"name":"mpack","ecosystem":"Ubuntu:16.04:LTS","purl":"pkg:deb/ubuntu/mpack?arch=source&distro=xenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.6-8"],"ecosystem_specific":{"binaries":[{"binary_version":"1.6-8","binary_name":"mpack"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-88350.json"}},{"package":{"name":"mpack","ecosystem":"Ubuntu:18.04:LTS","purl":"pkg:deb/ubuntu/mpack?arch=source&distro=bionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.6-8.1","1.6-8.2"],"ecosystem_specific":{"binaries":[{"binary_version":"1.6-8.2","binary_name":"mpack"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-88350.json"}},{"package":{"name":"mpack","ecosystem":"Ubuntu:20.04:LTS","purl":"pkg:deb/ubuntu/mpack?arch=source&distro=focal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.6-8.2"],"ecosystem_specific":{"binaries":[{"binary_name":"mpack","binary_version":"1.6-8.2"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-88350.json"}},{"package":{"name":"mpack","ecosystem":"Ubuntu:22.04:LTS","purl":"pkg:deb/ubuntu/mpack?arch=source&distro=jammy"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.6-17","1.6-18"],"ecosystem_specific":{"binaries":[{"binary_name":"mpack","binary_version":"1.6-18"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-88350.json"}},{"package":{"name":"mpack","ecosystem":"Ubuntu:24.04:LTS","purl":"pkg:deb/ubuntu/mpack?arch=source&distro=noble"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.6-18"],"ecosystem_specific":{"binaries":[{"binary_name":"mpack","binary_version":"1.6-18"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-88350.json"}},{"package":{"name":"mpack","ecosystem":"Ubuntu:26.04:LTS","purl":"pkg:deb/ubuntu/mpack?arch=source&distro=resolute"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.6-19","1.6-19build1"],"ecosystem_specific":{"binaries":[{"binary_name":"mpack","binary_version":"1.6-19build1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-88350.json"}}],"schema_version":"1.9.0","severity":[{"type":"Ubuntu","score":"medium"}]}