CVE-2026-26448

CVSS 9.8 (critical) · published 2026-08-26

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.

Weakness: CWE-416

Source: NVD CVE-2026-26448

References

• https://github.com/mdoi/stomper
• https://github.com/songxpu/bug_report/blob/master/Stomp/stomper_vuln4.md
• https://github.com/songxpu/bug_report/blob/master/Stomp/stomper_vuln4.md

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