{"id":"UBUNTU-CVE-2026-26448","details":"Stomper 5e2741e is vulnerable to Use-After-Free. When a client sends multiple CONNECT frames on the same TCP connection, and subsequently another client (or a later connection) sends SEND frames to a destination previously subscribed on that connection, the broker may dereference a pointer to a StompStreamSocket object that has already been freed. This results in a heap use-after-free and process crash. Because the protocol does not authenticate or restrict such sequences by default.","modified":"2026-09-02T19:35:38.331955140Z","published":"2026-08-26T20:17:00Z","upstream":["CVE-2026-26448"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2026-26448"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2026-26448"}],"affected":[{"package":{"name":"stomper","ecosystem":"Ubuntu:16.04:LTS","purl":"pkg:deb/ubuntu/stomper?arch=source&distro=xenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.3.0-1"],"ecosystem_specific":{"binaries":[{"binary_name":"python-stomper","binary_version":"0.3.0-1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-26448.json"}},{"package":{"name":"stomper","ecosystem":"Ubuntu:18.04:LTS","purl":"pkg:deb/ubuntu/stomper?arch=source&distro=bionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.3.0-1"],"ecosystem_specific":{"binaries":[{"binary_version":"0.3.0-1","binary_name":"python-stomper"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-26448.json"}},{"package":{"name":"stomper","ecosystem":"Ubuntu:20.04:LTS","purl":"pkg:deb/ubuntu/stomper?arch=source&distro=focal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.4.1-2"],"ecosystem_specific":{"binaries":[{"binary_name":"python3-stomper","binary_version":"0.4.1-2"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-26448.json"}},{"package":{"name":"stomper","ecosystem":"Ubuntu:22.04:LTS","purl":"pkg:deb/ubuntu/stomper?arch=source&distro=jammy"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.4.1-2","0.4.3-1"],"ecosystem_specific":{"binaries":[{"binary_version":"0.4.3-1","binary_name":"python3-stomper"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-26448.json"}},{"package":{"name":"stomper","ecosystem":"Ubuntu:24.04:LTS","purl":"pkg:deb/ubuntu/stomper?arch=source&distro=noble"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.4.3-2","0.4.3-3"],"ecosystem_specific":{"binaries":[{"binary_name":"python3-stomper","binary_version":"0.4.3-3"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-26448.json"}},{"package":{"name":"stomper","ecosystem":"Ubuntu:26.04:LTS","purl":"pkg:deb/ubuntu/stomper?arch=source&distro=resolute"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.4.3-3","0.4.3-3build1"],"ecosystem_specific":{"binaries":[{"binary_name":"python3-stomper","binary_version":"0.4.3-3build1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-26448.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"},{"type":"Ubuntu","score":"medium"}]}