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fkie_cve-2026-77619

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 listener can send a minimal frame declaring a multi-gigabyte payload, causing an excessive allocation that can abort Vector or invoke the host OOM killer. Because the allocation follows the declared length rather than bytes transmitted, the attacker has low resource cost, and process termination can halt log ingestion for every tenant on a shared pipeline. This issue is fixed in version 0.57.0.

RHSA-2026:92515 — Red Hat Security Advisory: Logging for Red Hat OpenShift - 6.6.2

github.com/open-telemetry/opentelemetry-go: go.opentelemetry.io/otel/baggage: go.opentelemetry.io/otel/propagation: OpenTelemetry-Go: Denial of Service via oversized baggage headers net/mail: golang: net/mail: Denial of Service via pathological email address parsing github.com/klauspost/compress: klauspost/compress: Denial of Service via integer overflow in dictionary processing vector: Vector: Denial of Service via unbounded memory allocation in Logstash source google.golang.org/grpc: gRPC-Go: Denial of Service via HTTP/2 DATA Frame Fragmentation google.golang.org/grpc: gRPC-Go: Denial of Service via malformed RPC requests