{"id":"UBUNTU-CVE-2026-26445","details":"stomper 5e2741e is vulnerable to Denial of Service. A malicious client can send partial STOMP frames and keep the TCP connections open, which, combined with the broker s use of edge-triggered epoll (EPOLLET) and MSG_PEEK in recv(), causes sockets to enter a permanent half-read state. When enough such connections accumulate, the broker stops receiving any further epoll events for those sockets and eventually hangs in epoll_wait, effectively refusing to process new messages.","modified":"2026-09-03T22:54:27.606192161Z","published":"2026-08-26T20:17:00Z","upstream":["CVE-2026-26445"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2026-26445"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2026-26445"}],"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_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-2026-26445.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_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-2026-26445.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-2026-26445.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_name":"python3-stomper","binary_version":"0.4.3-1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-26445.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_version":"0.4.3-3","binary_name":"python3-stomper"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-26445.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_version":"0.4.3-3build1","binary_name":"python3-stomper"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-26445.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:N/I:N/A:H"},{"type":"Ubuntu","score":"medium"}]}