CVE-2026-13491

The record

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 packages

Related vulnerabilities

• CVE-2026-118276 A vulnerability was determined in a2ui-project a2ui up to 0.10.6. CWE-404
• CVE-2026-118275 A vulnerability was found in a2ui-project a2ui up to 0.10.6. CWE-404
• CVE-2026-118274 A vulnerability has been found in a2ui-project a2ui up to 0.10.6. CWE-404
• CVE-2026-118273 A flaw has been found in a2ui-project a2ui up to 0.10.6. CWE-404
• CVE-2026-118271 A security vulnerability has been detected in a2ui-project a2ui up to 0.10.6. CWE-404
• CVE-2026-117505 A security flaw has been discovered in a2aproject a2a-java up to 1.2.0.Final. CWE-404
• CVE-2026-117506 A weakness has been identified in a2aproject a2a-java up to 1.2.0.Final. CWE-404
• CVE-2026-117504 A vulnerability was identified in a2aproject a2a-go up to 2.4.0. CWE-404