SEPTEMBER 15, 2026
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Case File

CVE-2026-26448

CRITICAL · CVSS 9.8 EPSS 0.38% Public Exploit

Source: NVD + CISA KEV + EPSS · Published 2026-08-26 · Last synced 2026-09-15

CyberRota Analysis

AI-Generated

The vulnerability affects Stomper 5e2741e, which is susceptible to a use-after-free condition due to improper handling of multiple CONNECT frames on the same TCP connection. This flaw can lead to a heap corruption and process crash when subsequent SEND frames are sent to a previously subscribed destination, potentially allowing for denial-of-service attacks. Organizations using this broker should prioritize patching or mitigating this vulnerability, especially those relying on Stomp protocol for messaging without additional authentication or restrictions.

Public Exploit Signal

A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.

Note: these links are listed for security research and verification purposes only.

CVE
CVE-2026-26448
Severity
CRITICAL
CVSS
9.8
EPSS
0.38%

Original NVD Description

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.