HTTP/2 Remote Denial of Service via HPACK compression bomb and Slowloris-style attack
Summary
HTTP/2 Remote Denial of Service via HPACK compression bomb and Slowloris-style attack. Red Hat rates this important (CVSS 7.5). Weakness: CWE-409. Affected package(s): openshift-service-mesh/istio-proxyv2-rhel9:1781069908, openshift-service-mesh/istio-proxyv2-rhel9:1781070158, openshift-service-mesh/istio-proxyv2-rhel9:1781070967, openshift-service-mesh/proxyv2-rhel9:1781604724, openshift-service-mesh/istio-proxyv2-rhel9:1781094520. Resolved in Red Hat advisory RHSA-2026:26210 — update the affected packages (`sudo dnf update`).
- openshift-service-mesh/istio-proxyv2-rhel9:1781069908
- openshift-service-mesh/istio-proxyv2-rhel9:1781070158
- openshift-service-mesh/istio-proxyv2-rhel9:1781070967
- openshift-service-mesh/proxyv2-rhel9:1781604724
- openshift-service-mesh/istio-proxyv2-rhel9:1781094520
Official advisory · high-confidence parse· fetched 2 hours ago·verify at source
- RHSA-2026:26210
Official advisory · high-confidence parse· fetched 2 hours ago·verify at source
Mitigation checklist
- Update the affected package(s) to the fixed version shipped in RHSA-2026:26210 (`sudo dnf update` / `yum update`).
Official advisory · high-confidence parse· fetched 2 hours ago·verify at source
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