CVE-2026-26448

critical · 9.8

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.

9.8

CVSS

0.6%

EPSS (exploit prob.)

46th

EPSS percentile

2026-08-26

Published

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Weaknesses

CWE-416

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

Query this programmatically:

curl https://evil-db.io/api/v1/cve/CVE-2026-26448