Security context

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

sass/listen

              master @ 48404a0
            

Fixes

CVEs

CRITICAL

Peak severity

Highlights

Deserialization of Untrusted Data: 1 prior fix. Scrutinize any change in this area.

lib/listen/tcp/message.rb: most-fixed (1 issue). Treat as high-risk during review.

1 high-severity fix in this history; regressions here are high-impact.

Recurring patterns

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

Deserialization of Untrusted Data: The use of Marshal.load on untrusted data from TCP sockets allowed arbitrary Ruby object injection and remote code execution. This was mitigated by transitioning the TCP message processing format strictly to JSON parsing.