CVE-2026-97032
High
Description
HTTP/2 servers could end up crashing due to inadvertently modifying its HPACK encoder concurrently. This happens because the server modifies the HPACK encoder from two goroutines without synchronization: one uses the encoder to encode a HEADERS frame as part of a response sent to a client and the other modifies the encoder's table size when handling a SETTINGS frame containing SETTINGS_HEADER_TABLE_SIZE that a client sends. A malicious client can repeatedly send a request while changing the header table size to crash the server.
SeverityHigh
CVSS7.5
Exploit probability—
Product
Stdlib
PublishedOct 8, 2026
First seenOct 8, 2026
Weakness typeCWE-362Race condition
How to fix
Update
- stdlib1.26.9, 1.27.2 or later
- golang.org/x/net0.60.0 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| stdlibGo | v < 1.26.9, 1.27.0-0 ≤ v < 1.27.2 | 1.26.9, 1.27.2 |
| golang.org/x/netGo | v < 0.60.0 | 0.60.0 |
| microsoft azl3_application-gateway-kubernetes-ingress_1.7.7-6 | No range specified | — |
| microsoft azl3_azurelinux-image-tools_1.6.0-3 | No range specified | — |
| microsoft azl3_cert-manager_1.12.15-14 | No range specified | — |
| microsoft azl3_cloud-provider-kubevirt_0.5.1-9 | No range specified | — |
| microsoft azl3_containerd2_2.3.4-1 | No range specified | — |
| microsoft azl3_containerized-data-importer_1.62.0-8 | No range specified | — |
| microsoft azl3_coredns_1.11.4-21 | No range specified | — |
| microsoft azl3_docker-buildx_0.14.0-17 | No range specified | — |
| microsoft azl3_docker-compose_2.27.0-14 | No range specified | — |
| microsoft azl3_etcd_3.5.33-1 | No range specified | — |
| microsoft azl3_flannel_0.24.2-32 | No range specified | — |
| microsoft azl3_gh_2.101.0-1 | No range specified | — |
| microsoft azl3_git-lfs_3.6.1-6 | No range specified | — |
| microsoft azl3_influxdb_2.7.5-21 | No range specified | — |
| microsoft azl3_jx_3.10.182-5 | No range specified | — |
| microsoft azl3_kata-containers_4.1.0.kata0-1 | No range specified | — |
| microsoft azl3_kata-containers-cc_3.15.0.aks0-21 | No range specified | — |
| microsoft azl3_keda_2.14.1-19 | No range specified | — |
| microsoft azl3_kube-vip-cloud-provider_0.0.10-10 | No range specified | — |
| microsoft azl3_kubernetes_1.30.10-30 | No range specified | — |
| microsoft azl3_kubevirt_1.8.4-2 | No range specified | — |
| microsoft azl3_kured_1.15.0-6 | No range specified | — |
| microsoft azl3_moby-containerd-cc_1.7.7-17 | No range specified | — |
| microsoft azl3_moby-engine_25.0.3-20 | No range specified | — |
| microsoft azl3_multus_4.0.2-11 | No range specified | — |
| microsoft azl3_opa_0.63.0-5 | No range specified | — |
| microsoft azl3_packer_1.9.5-21 | No range specified | — |
| microsoft azl3_prometheus-adapter_0.12.0-10 | No range specified | — |
| microsoft azl3_prometheus-node-exporter_1.7.0-5 | No range specified | — |
| microsoft azl3_prometheus-process-exporter_0.8.2-5 | No range specified | — |
| microsoft azl3_skopeo_1.14.4-13 | No range specified | — |
| microsoft azl3_telegraf_1.31.0-33 | No range specified | — |
| microsoft azl3_vitess_19.0.4-14 | No range specified | — |
| microsoft azl3_golang_1.26.7-1 | No range specified | — |
| microsoft azl3_golang_1.27.1-1 | No range specified | — |
| microsoft azl4_gcc_15.3.1-1.azl4 | No range specified | — |
| microsoft azl3_kata-containers_4.1.0.kata1-2 | No range specified | — |
| microsoft azl3_kata-containers-cc_3.15.0.aks0-23 | No range specified | — |
| microsoft azl3_kubernetes_1.30.10-32 | No range specified | — |
| microsoft azl3_moby-containerd-cc_1.7.7-19 | No range specified | — |
| microsoft azl3_moby-engine_25.0.18-1 | No range specified | — |
| microsoft azl3_golang_1.26.10-1 | No range specified | — |
| microsoft azl3_golang_1.27.3-1 | No range specified | — |
| microsoft azl3_kubevirt-openvmm_1.9.0-1 | No range specified | — |
Check your version
Choose the product and enter the version you run to see whether it falls in the affected range.
In the Intelligence 360 plan
Attack Surface Management
See the assets tied to your domains, the technologies they run and known vulnerabilities in one list.