cve-2026-29181

CVE-2026-29181 is a high-severity denial-of-service vulnerability in OpenTelemetry-Go, affecting versions 1.36.0 through 1.40.0 and fixed in 1.41.0. The flaw involves repeated multi-value baggage HTTP headers that can trigger excessive CPU and memory allocation in instrumented Go services. While not a classic Windows vulnerability, it is relevant to WindowsForum readers because modern Windows environments increasingly rely on Go services, Kubernetes workloads, observability agents, and cloud-native components. This issue highlights that telemetry dependencies can introduce serious production risks, even without dramatic symptoms. The tag covers discussions about the vulnerability, its impact on Windows-based deployments, and the importance of updating to version 1.41.0 to mitigate potential denial-of-service conditions.