CVE-2026-77619 Vector: Unauthenticated denial of service in the `logstash` source via unbounded memory allocation.

Vector is a high-performance observability data pipeline. From 0.15.0 until 0.57.0, the logstash source reads a 32-bit compressed-frame length from the network and uses it to size an in-memory buffer without an upper bound. An unauthenticated remote peer that can reach the default 0.0.0.0:5044...