Security context

What an agent needs to avoid regressing past fixes and find the next vuln in this repo.

moquette-io/moquette

              main @ da7f719
            

Fixes

CVEs

HIGH

Peak severity

50.0%

Coverage

Highlights

Denial of Service: 8 prior fixes. Scrutinize any change in this area.

broker/src/main/java/io/moquette/broker/PostOffice.java: most-fixed (3 issues). Treat as high-risk during review.

2 high-severity fixes in this history; regressions here are high-impact.

Recurring patterns

The bug types that recur here, drawn from past fixes, not open vulnerabilities.

Denial of Service: Netty ReferenceCounted byte buffers are prone to memory leaks during message dispatch, flight window removal, and QoS processing, which can lead to heap or direct-memory exhaustion and crash the broker.

Auth Bypass: Stale or hijacked connections can influence sessions after takeover if the broker fails to validate that the invoking connection is still actively bound to the current session.

Auth Bypass: Inadequate enforcement of MQTT specification constraints can allow clients to bypass authorization boundaries and publish or subscribe to restricted system-level topics starting with '$'.