High [CVE-2026-29181] github.com/open-telemetry/opentelemetry-go: OpenTelemetry-Go: Denial of Service via crafted multi-value baggage headers
This high-severity Red Hat Linux advisory covers CVE-2026-29181 affecting Red Hat Advanced Cluster Management for Kubernetes 2, cert-manager Operator for Red Hat OpenShift, Logging Subsystem for Red Hat OpenShift.
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Summary
github.com/open-telemetry/opentelemetry-go: OpenTelemetry-Go: Denial of Service via crafted multi-value baggage headers. Red Hat rates this important (CVSS 7.5).
Weakness: CWE-770. Affected package(s): multicluster-engine/hypershift-addon-rhel9-operator:1780917881.
Resolved in Red Hat advisory RHSA-2026:25271 — update the affected packages (`sudo dnf update`).
Affected products named by the advisory: Red Hat Advanced Cluster Management for Kubernetes 2; cert-manager Operator for Red Hat OpenShift; Logging Subsystem for Red Hat OpenShift.
- multicluster-engine/hypershift-addon-rhel9-operator:1780917881
Official advisory · high-confidence parse· fetched 2 months ago·verify at source
- RHSA-2026:25271
Official advisory · high-confidence parse· fetched 2 months ago·verify at source
Mitigation checklist
- Update the affected package(s) to the fixed version shipped in RHSA-2026:25271 (`sudo dnf update` / `yum update`).
Official advisory · high-confidence parse· fetched 2 months ago·verify at source
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