{"id":"CVE-2026-26448","aliases":[],"url":"https://o3.security/vulnerability/CVE-2026-26448","summary":"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…","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.","published":"2026-08-26T20:17:11.767","modified":"2026-08-27T20:17:18.767","cvss":{"score":9.8,"severity":"CRITICAL","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"},"epss":null,"cisaKev":null,"exploitsKnown":null,"affectedPackages":[],"fix":null,"references":[{"type":"WEB","url":"https://github.com/mdoi/stomper"},{"type":"WEB","url":"https://github.com/songxpu/bug_report/blob/master/Stomp/stomper_vuln4.md"},{"type":"WEB","url":"https://github.com/songxpu/bug_report/blob/master/Stomp/stomper_vuln4.md"}],"provenance":{"sources":["OSV.dev","NVD","FIRST.org (EPSS)"],"lastVerified":"2026-08-27T20:17:18.767"}}