Aias00 opened a new issue, #6743: URL: https://github.com/apache/shenyu/issues/6743
- severity: Medium - files: `shenyu-protocol/shenyu-protocol-mqtt/src/main/java/org/apache/shenyu/protocol/mqtt/Publish.java:97-103` - description: `qos2()` builds a `MqttPubAckMessage` with fixed-header type `PUBACK`. For QoS 2 PUBLISH the server must answer with PUBREC, then complete PUBREL/PUBCOMP. Sending PUBACK terminates the QoS 2 handshake incorrectly. - impact: QoS 2 (exactly-once) delivery is broken; spec-compliant clients treat it as a protocol error. - suggested_fix: Send PUBREC for QoS 2 and implement the PUBREL→PUBCOMP half-handshake. - confidence: High - related_existing: none --- _Identified during the 2026-08-02 deep re-scan; full list in [`docs/scan2-2026-08-02/06-medium-tiers.md`](docs/scan2-2026-08-02/06-medium-tiers.md)._ -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: [email protected] For queries about this service, please contact Infrastructure at: [email protected]
