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Vulnerability · Published Jun 28, 2026 · Assigned by VulDB

CVE-2026-1349178 xiaozhi-esp32 MQTT Goodbye mqtt_protocol.cc GetInstance denial of service

Low 3.7

In plain English

A low-severity security flaw in xiaozhi-esp32 from 78. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.6% (higher than 50% of all known vulnerabilities).

Severity (CVSS 3.1)3.7Low
Exploit odds (30 days)0.6%top 49.9% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known

Official description

A vulnerability was detected in 78 xiaozhi-esp32 up to 2.2.6. This vulnerability affects the function Application::GetInstance of the file main/protocols/mqtt_protocol.cc of the component MQTT Goodbye Handler. Performing a manipulation of the argument session_id results in denial of service. The attack is possible to be carried out remotely. The complexity of an attack is rather high. It is stated that the exploitability is difficult. The exploit is now public and may be used. The patch is named e182471f8c5a22434346bd98da34d3b66c8c8b3e. It is recommended to apply a patch to fix this issue.

Affected products (as reported)

VendorProductVersions
78 xiaozhi-esp32 2.2.02.2.12.2.22.2.32.2.42.2.52.2.6

Weakness: CWE-404 · Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L/E:P/RL:O/RC:C

References