StackRadar

CVE-2026-84303

Medium

Advisory

Published 1 Sept 2026In the index since 6 Sept 2026
Severity
Medium
worst across findings
CVSS
6.3
base score, highest
EPSS
0.003
24th percentile
CISA KEV
Not listed
no confirmed exploitation
Charts affected
2,232
of 17,803 indexed, latest versions
Container images
2,708
deployed by those charts
Fix available
1 of 2
affected packages

gRPC-Go: xDS RBAC HTTP Filter bypass via mixed-case Header Matching and gRFC A41 validation evasion

Carried by container images the latest versions of 2,232 of 17,803 indexed charts deploy, on 2,708 images.

Affected packageAffected versionsFixed inImages
google.golang.org/grpcgolangv0.0.0-20160317175043-d3ddb4469d5a, v0.0.0-20170216003643-d0c32ee6a441, v1.10.0, v1.14.0+114 more1.83.12,705
grpcdeb1.16.1-1ubuntu5, 1.51.1-4.1build5no fix listed3
OSV records
GHSA-qc2q-p7wx-3px3UBUNTU-CVE-2026-84303
Also known as
GO-2026-6441

Charts affected

2,232 by stars
ChartLatestAffected imagesRadar Score
kube-state-metricswenerme8.5.01 of 1See more

kube-state-metrics wenerme 8.5.0

1 of the 1 container images this version deploys carry CVE-2026-84303.

Container imageDigestPackageFixed in
registry.k8s.io/kube-state-metrics/kube-state-metrics:v2.20.042cfe3723a5f
google.golang.org/grpc@v1.79.3
1.83.1

Open the chart page →

89
longhornwenerme1.2.31 of 2See more

longhorn wenerme 1.2.3

1 of the 2 container images this version deploys carry CVE-2026-84303.

Container imageDigestPackageFixed in
longhornio/longhorn-manager:v1.2.3dca34321452c
google.golang.org/grpc@v1.26.0
1.83.1

Open the chart page →

15,310
mesherywenerme1.0.701 of 1See more

meshery wenerme 1.0.70

1 of the 1 container images this version deploys carry CVE-2026-84303.

Container imageDigestPackageFixed in
meshery/meshery:stable-latest44b64ee128fb
google.golang.org/grpc@v1.82.1
1.83.1

Open the chart page →

1,445
miniowenerme8.0.101 of 1See more

minio wenerme 8.0.10

1 of the 1 container images this version deploys carry CVE-2026-84303.

Container imageDigestPackageFixed in
minio/minio:RELEASE.2021-02-14T04-01-33Zbd11edda91f3
google.golang.org/grpc@v1.26.0
1.83.1

Open the chart page →

6,922
minio-standalonewenerme1.0.21 of 1See more

minio-standalone wenerme 1.0.2

1 of the 1 container images this version deploys carry CVE-2026-84303.

Container imageDigestPackageFixed in
minio/minio:RELEASE.2022-01-04T07-41-07Z1484c87239ea
google.golang.org/grpc@v1.41.0
1.83.1

Open the chart page →

6,145
openebswenerme3.10.02 of 3See more

openebs wenerme 3.10.0

2 of the 3 container images this version deploys carry CVE-2026-84303.

Container imageDigestPackageFixed in
openebs/node-disk-manager:2.1.0f6c18b0f8c8a
google.golang.org/grpc@v1.47.0
1.83.1
openebs/provisioner-localpv:3.5.0aea39e49bb97
google.golang.org/grpc@v1.55.0
1.83.1

Open the chart page →

10,602
prometheuswenerme29.30.12See more

prometheus wenerme 29.30.1

2 container images this version deploys carry CVE-2026-84303.

Container imageDigestPackageFixed in
quay.io/prometheus/prometheus:v3.14.05ce7540c3c00
google.golang.org/grpc@v1.82.1
1.83.1
registry.k8s.io/kube-state-metrics/kube-state-metrics:v2.20.042cfe3723a5f
google.golang.org/grpc@v1.79.3
1.83.1

Open the chart page →

—
rancherwenerme2.15.12 of 2See more

rancher wenerme 2.15.1

2 of the 2 container images this version deploys carry CVE-2026-84303.

Container imageDigestPackageFixed in
rancher/rancher:v2.15.15f6c4dc52a05
google.golang.org/grpc@v1.79.3
1.83.1
rancher/shell:v0.8.1f293af9c635f
google.golang.org/grpc@v1.79.3
1.83.1

Open the chart page →

1,487
temporalwenerme0.15.14 of 13See more

temporal wenerme 0.15.1

4 of the 13 container images this version deploys carry CVE-2026-84303.

Container imageDigestPackageFixed in
grafana/grafana:6.7.11ff3999e0fc0
google.golang.org/grpc@v1.23.1
1.83.1
prom/prometheus:v2.16.0e4ca62c0d62f
google.golang.org/grpc@v1.22.1
1.83.1
temporalio/admin-tools:1.15.135034611d981
google.golang.org/grpc@v1.44.0
1.83.1
temporalio/server:1.15.1e26758f5a1bf
google.golang.org/grpc@v1.44.0
1.83.1

Open the chart page →

22,707
traefikwenerme9.1.11 of 1See more

traefik wenerme 9.1.1

1 of the 1 container images this version deploys carry CVE-2026-84303.

Container imageDigestPackageFixed in
library/traefik:2.2.8f5af5a5ce17f
google.golang.org/grpc@v1.27.1
1.83.1

Open the chart page →

3,378
vaultwenerme0.34.11 of 2See more

vault wenerme 0.34.1

1 of the 2 container images this version deploys carry CVE-2026-84303.

Container imageDigestPackageFixed in
hashicorp/vault:2.0.45be49781ecf7
google.golang.org/grpc@v1.82.1
1.83.1

Open the chart page →

549
victoria-metrics-k8s-stackwenerme0.92.13 of 7See more

victoria-metrics-k8s-stack wenerme 0.92.1

3 of the 7 container images this version deploys carry CVE-2026-84303.

Container imageDigestPackageFixed in
grafana/grafana:13.1.17cb8c64c4d57
google.golang.org/grpc@v1.81.1
1.83.1
victoriametrics/operator:v0.74.17310c4a80b94
google.golang.org/grpc@v1.82.1
1.83.1
registry.k8s.io/kube-state-metrics/kube-state-metrics:v2.19.185108987d044
google.golang.org/grpc@v1.79.3
1.83.1

Open the chart page →

1,915
victoria-metrics-operatorwenerme0.67.31 of 1See more

victoria-metrics-operator wenerme 0.67.3

1 of the 1 container images this version deploys carry CVE-2026-84303.

Container imageDigestPackageFixed in
victoriametrics/operator:v0.74.17310c4a80b94
google.golang.org/grpc@v1.82.1
1.83.1

Open the chart page →

115
wexa-studiowexa-studio1.2.05 of 15See more

wexa-studio wexa-studio 1.2.0

5 of the 15 container images this version deploys carry CVE-2026-84303.

Container imageDigestPackageFixed in
hashicorp/vault:1.15.40b01ed3924e6
google.golang.org/grpc@v1.58.3
1.83.1
minio/minio:RELEASE.2024-01-16T16-07-38Z4c4a4876193f
google.golang.org/grpc@v1.60.1
1.83.1
temporalio/admin-tools:1.29.1-tctl-1.18.4-cli-1.5.0a3a52e6ca122
google.golang.org/grpc@v1.56.3
1.83.1
temporalio/server:1.29.1c1e3326b2ce1
google.golang.org/grpc@v1.72.2
1.83.1
temporalio/ui:2.44.00b36e00aad30
google.golang.org/grpc@v1.66.1
1.83.1

Open the chart page →

15,056
ceph-csi-cephfswikimedia0.1.85 of 5See more

ceph-csi-cephfs wikimedia 0.1.8

5 of the 5 container images this version deploys carry CVE-2026-84303.

Container imageDigestPackageFixed in
gcr.io/k8s-staging-sig-storage/csi-provisioner:v3.2.14ad5fcdbe7e9
google.golang.org/grpc@v1.45.0
1.83.1
quay.io/cephcsi/cephcsi:v3.7.2f7f8228f17cc
google.golang.org/grpc@v1.48.0
1.83.1
registry.k8s.io/sig-storage/csi-node-driver-registrar:v2.5.10103eee7c35e
google.golang.org/grpc@v1.40.0
1.83.1
registry.k8s.io/sig-storage/csi-resizer:v1.5.08f7520bd957e
google.golang.org/grpc@v1.40.0
1.83.1
registry.k8s.io/sig-storage/csi-snapshotter:v6.0.1ad16874e2140
google.golang.org/grpc@v1.40.0
1.83.1

Open the chart page →

10,321
ceph-csi-rbdwikimedia0.1.136 of 6See more

ceph-csi-rbd wikimedia 0.1.13

6 of the 6 container images this version deploys carry CVE-2026-84303.

Container imageDigestPackageFixed in
gcr.io/k8s-staging-sig-storage/csi-provisioner:v3.2.14ad5fcdbe7e9
google.golang.org/grpc@v1.45.0
1.83.1
quay.io/cephcsi/cephcsi:v3.7.2f7f8228f17cc
google.golang.org/grpc@v1.48.0
1.83.1
registry.k8s.io/sig-storage/csi-attacher:v3.5.0dd245051317e
google.golang.org/grpc@v1.40.0
1.83.1
registry.k8s.io/sig-storage/csi-node-driver-registrar:v2.5.10103eee7c35e
google.golang.org/grpc@v1.40.0
1.83.1
registry.k8s.io/sig-storage/csi-resizer:v1.5.08f7520bd957e
google.golang.org/grpc@v1.40.0
1.83.1
registry.k8s.io/sig-storage/csi-snapshotter:v6.0.1ad16874e2140
google.golang.org/grpc@v1.40.0
1.83.1

Open the chart page →

11,827
jaegerwikimedia3.1.23 of 4See more

jaeger wikimedia 3.1.2

3 of the 4 container images this version deploys carry CVE-2026-84303.

Container imageDigestPackageFixed in
jaegertracing/jaeger-agent:1.53.00214a0ef24b1
google.golang.org/grpc@v1.60.0
1.83.1
jaegertracing/jaeger-collector:1.53.07f1269222903
google.golang.org/grpc@v1.60.0
1.83.1
jaegertracing/jaeger-query:1.53.0049bb0d64ea3
google.golang.org/grpc@v1.60.0
1.83.1

Open the chart page →

9,340
opentelemetry-collectorwikimedia0.62.71 of 1See more

opentelemetry-collector wikimedia 0.62.7

1 of the 1 container images this version deploys carry CVE-2026-84303.

Container imageDigestPackageFixed in
otel/opentelemetry-collector-contrib:0.81.0c6671841470b
google.golang.org/grpc@v1.56.1
1.83.1

Open the chart page →

2,032
wireguardwireguard-bananas1.5.01 of 1See more

wireguard wireguard-bananas 1.5.0

1 of the 1 container images this version deploys carry CVE-2026-84303.

Container imageDigestPackageFixed in
place1/wg-access-server:v0.4.62b2f3ea80ed6
google.golang.org/grpc@v1.30.0
1.83.1

Open the chart page →

2,752
csi-driver-host-pathwiremindVerified publisher0.1.18 of 8See more

csi-driver-host-path wiremind 0.1.1

8 of the 8 container images this version deploys carry CVE-2026-84303.

Container imageDigestPackageFixed in
registry.k8s.io/sig-storage/csi-attacher:v4.0.09a685020911e
google.golang.org/grpc@v1.47.0
1.83.1
registry.k8s.io/sig-storage/csi-external-health-monitor-controller:v0.7.080b9ba94aa2a
google.golang.org/grpc@v1.48.0
1.83.1
registry.k8s.io/sig-storage/csi-node-driver-registrar:v2.6.0f1c25991bac2
google.golang.org/grpc@v1.50.1
1.83.1
registry.k8s.io/sig-storage/csi-provisioner:v3.3.0ee3b525d5b89
google.golang.org/grpc@v1.49.0
1.83.1
registry.k8s.io/sig-storage/csi-resizer:v1.6.0425d8f1b7693
google.golang.org/grpc@v1.47.0
1.83.1
registry.k8s.io/sig-storage/csi-snapshotter:v6.1.0291334908ddf
google.golang.org/grpc@v1.47.0
1.83.1
registry.k8s.io/sig-storage/hostpathplugin:v1.9.092257881c1d6
google.golang.org/grpc@v1.34.0
1.83.1
registry.k8s.io/sig-storage/livenessprobe:v2.8.0cacee2b5c36d
google.golang.org/grpc@v1.48.0
1.83.1

Open the chart page →

12,663
orcwiremindVerified publisher0.3.01 of 1See more

orc wiremind 0.3.0

1 of the 1 container images this version deploys carry CVE-2026-84303.

Container imageDigestPackageFixed in
quay.io/orc/openstack-resource-controller:v2.5.079f22af49612
google.golang.org/grpc@v1.79.3
1.83.1

Open the chart page →

269
registrywiremindVerified publisher0.1.11 of 1See more

registry wiremind 0.1.1

1 of the 1 container images this version deploys carry CVE-2026-84303.

Container imageDigestPackageFixed in
ghcr.io/distribution/distribution:3.0.04ba3adf47f5c
google.golang.org/grpc@v1.68.0
1.83.1

Open the chart page →

1,195
kafka-connect-uiwitcom-gmbh0.5.01 of 2See more

kafka-connect-ui witcom-gmbh 0.5.0

1 of the 2 container images this version deploys carry CVE-2026-84303.

Container imageDigestPackageFixed in
quay.io/oauth2-proxy/oauth2-proxy:v7.3.08c21390be87d
google.golang.org/grpc@v1.27.0
1.83.1

Open the chart page →

2,512
mrtg-backendwitcom-gmbh0.7.01 of 2See more

mrtg-backend witcom-gmbh 0.7.0

1 of the 2 container images this version deploys carry CVE-2026-84303.

Container imageDigestPackageFixed in
quay.io/oauth2-proxy/oauth2-proxy:v7.2.1febeebebe762
google.golang.org/grpc@v1.27.0
1.83.1

Open the chart page →

2,623
xboardxboard0.2.01 of 1See more

xboard xboard 0.2.0

1 of the 1 container images this version deploys carry CVE-2026-84303.

Container imageDigestPackageFixed in
ghcr.io/cedar2025/xboard:latest896e4926e0d7
google.golang.org/grpc@v1.81.0
1.83.1

Open the chart page →

1,042
xkopsxkops0.1.01 of 5See more

xkops xkops 0.1.0

1 of the 5 container images this version deploys carry CVE-2026-84303.

Container imageDigestPackageFixed in
murtazashah46/helmfile:latest4d11726cf803
google.golang.org/grpc@v1.49.0
1.83.1

Open the chart page →

13,813
xonodepoolsxonodepoolsOfficialVerified publisher1.0.71 of 1See more

xonodepools xonodepools 1.0.7

1 of the 1 container images this version deploys carry CVE-2026-84303.

Container imageDigestPackageFixed in
xosphere/xonodepools:1.0.71458097b6f85
google.golang.org/grpc@v1.72.2
1.83.1

Open the chart page →

394
ygdrassil-monitoringygdrassilVerified publisher0.4.02 of 10See more

ygdrassil-monitoring ygdrassil 0.4.0

2 of the 10 container images this version deploys carry CVE-2026-84303.

Container imageDigestPackageFixed in
grafana/grafana:11.5.15781759b3d27
google.golang.org/grpc@v1.69.2
1.83.1
quay.io/prometheus/prometheus:v3.1.06559acbd5d77
google.golang.org/grpc@v1.69.0
1.83.1

Open the chart page →

9,401
matrixdb-operatorymatrixOfficialVerified publisher0.13.01 of 2See more

matrixdb-operator ymatrix 0.13.0

1 of the 2 container images this version deploys carry CVE-2026-84303.

Container imageDigestPackageFixed in
matrixdb/kubebuilder_kube-rbac-proxy:v0.12.0ed3c7e6291e8
google.golang.org/grpc@v1.40.0
1.83.1

Open the chart page →

1,965
rawfile-csiymatrixVerified publisher0.2.14 of 4See more

rawfile-csi ymatrix 0.2.1

4 of the 4 container images this version deploys carry CVE-2026-84303.

Container imageDigestPackageFixed in
matrixdb/custom-external-provisioner:4622a07d7-202204247e9ffe249a51
google.golang.org/grpc@v1.40.0
1.83.1
matrixdb/rawfile-csi:v0.2.195b2e38e913d
google.golang.org/grpc@v1.45.0
1.83.1
matrixdb/sig-storage_csi-node-driver-registrar:v2.2.0ba763bb01ddc
google.golang.org/grpc@v1.36.0
1.83.1
matrixdb/sig-storage_livenessprobe:v2.3.07ab06fe3d8a7
google.golang.org/grpc@v1.36.0
1.83.1

Open the chart page →

8,000
prometheus-monitoring-stackyotron-helm-charts1.2.03 of 3See more

prometheus-monitoring-stack yotron-helm-charts 1.2.0

3 of the 3 container images this version deploys carry CVE-2026-84303.

Container imageDigestPackageFixed in
grafana/grafana:latestf772d434e8fa
google.golang.org/grpc@v1.81.1
1.83.1
quay.io/prometheus/alertmanager:latest690c7b525f43
google.golang.org/grpc@v1.82.1
1.83.1
quay.io/prometheus/prometheus:latest5ce7540c3c00
google.golang.org/grpc@v1.82.1
1.83.1

Open the chart page →

899
zahori-consulzahoriVerified publisher1.0.12 of 2See more

zahori-consul zahori 1.0.1

2 of the 2 container images this version deploys carry CVE-2026-84303.

Container imageDigestPackageFixed in
hashicorp/consul:1.15.3ddff34041c5c
google.golang.org/grpc@v1.49.0
1.83.1
hashicorp/consul-k8s-control-plane:1.1.262bed1bf8106
google.golang.org/grpc@v1.49.0
1.83.1

Open the chart page →

5,047

Container images carrying it

2,708 by charts deploying them

A fixed version is listed for 1 of the 2 affected packages.

Container imageDigestPackageFixed inUsed by
grafana/loki:2.9.1035b02acc6765
google.golang.org/grpc@v1.56.3
1.83.1
1
grafana/loki:2.9.26074e01dbe03
google.golang.org/grpc@v1.56.3
1.83.1
1
grafana/loki:2.9.66ca6e2cd3b6f
google.golang.org/grpc@v1.56.3
1.83.1
1
grafana/loki:3.0.0757b5fadf816
google.golang.org/grpc@v1.62.1
1.83.1
1
grafana/loki:2.0.077e138f81a8e
google.golang.org/grpc@v1.29.1
1.83.1
1
grafana/loki:3.6.5847c287ada0e
google.golang.org/grpc@v1.75.1
1.83.1
1
grafana/loki:3.7.487f0a0676737
google.golang.org/grpc@v1.81.1
1.83.1
1
grafana/loki:3.2.0882e30c20683
google.golang.org/grpc@v1.65.0
1.83.1
1
grafana/loki:3.3.28af2de1abbdd
google.golang.org/grpc@v1.67.1
1.83.1
1
grafana/loki:3.6.192bd5700577b
google.golang.org/grpc@v1.75.1
1.83.1
1
grafana/loki:2.8.2b1da1d23037e
google.golang.org/grpc@v1.52.3
1.83.1
1
grafana/loki:2.4.2b3af8ead67d7
google.golang.org/grpc@v1.40.0
1.83.1
1
grafana/loki:3.6.3cd6e176883a9
google.golang.org/grpc@v1.75.1
1.83.1
1
grafana/loki:3.7.6efd47c67f9ba
google.golang.org/grpc@v1.82.1
1.83.1
1
grafana/loki-canary:3.0.028d7c00588aa
google.golang.org/grpc@v1.62.1
1.83.1
1
grafana/loki-canary:3.1.039baf6d67f85
google.golang.org/grpc@v1.62.1
1.83.1
1
grafana/loki-canary:2.9.24249db29b992
google.golang.org/grpc@v1.56.3
1.83.1
1
grafana/loki-canary:3.2.049e03f80d361
google.golang.org/grpc@v1.65.0
1.83.1
1
grafana/loki-canary:2.9.6549a40203e97
google.golang.org/grpc@v1.56.3
1.83.1
1
grafana/loki-canary:2.6.1ab2a2569307b
google.golang.org/grpc@v1.44.0
1.83.1
1
grafana/loki-canary:3.6.5fbb984bab741
google.golang.org/grpc@v1.75.1
1.83.1
1
grafana/mcp-grafana:0.14.042f541f22063
google.golang.org/grpc@v1.80.0
1.83.1
1
grafana/mimir:r292-5f018727476e456c738
google.golang.org/grpc@v1.63.2
1.83.1
1
grafana/mimir:2.0.080c1a8eb24dd
google.golang.org/grpc@v1.41.1
1.83.1
1
grafana/mimir:2.15.085f55510e0d3
google.golang.org/grpc@v1.65.0
1.83.1
1
grafana/otel-lgtm:0.11.1009d8c3ce4f3a
google.golang.org/grpc@v1.75.0
1.83.1
1
grafana/phlare:0.5.1330f990cdad9
google.golang.org/grpc@v1.44.0
1.83.1
1
grafana/promtail:2.6.1072527b12cdf
google.golang.org/grpc@v1.44.0
1.83.1
1
grafana/promtail:2.0.05fd12edcc694
google.golang.org/grpc@v1.29.1
1.83.1
1
grafana/promtail:2.9.1063a2e57a5b14
google.golang.org/grpc@v1.56.3
1.83.1
1
grafana/promtail:3.5.165bfae480b57
google.golang.org/grpc@v1.71.0
1.83.1
1
grafana/promtail:3.6.18dcfdf466da0
google.golang.org/grpc@v1.75.1
1.83.1
1
grafana/promtail:2.7.0c16c710f7333
google.golang.org/grpc@v1.45.0
1.83.1
1
grafana/promtail:3.0.0d3de3da9431c
google.golang.org/grpc@v1.62.1
1.83.1
1
grafana/pyroscope:1.10.0319bf32ae06b
google.golang.org/grpc@v1.62.1
1.83.1
1
grafana/pyroscope:2.2.170cf34fcb09d
google.golang.org/grpc@v1.82.1
1.83.1
1
grafana/pyroscope:2.0.3cfd00e7f73c2
google.golang.org/grpc@v1.80.0
1.83.1
1
grafana/rollout-operator:v0.38.132fe838b79dd
google.golang.org/grpc@v1.82.0
1.83.1
1
grafana/rollout-operator:v0.14.03409edfb45c7
google.golang.org/grpc@v1.59.0
1.83.1
1
grafana/synthetic-monitoring-agent:v0.65.0fe3e095283f0
google.golang.org/grpc@v1.82.1
1.83.1
1
grafana/tempo:3.0.30296560ac66f
google.golang.org/grpc@v1.82.1
1.83.1
1
grafana/tempo:2.6.0f55a8a1937ff
google.golang.org/grpc@v1.65.0
1.83.1
1
graphiteapp/graphite-statsd:1.1.7-604a0037cc2ae
google.golang.org/grpc@v1.14.0
1.83.1
1
graviteeio/kubernetes-operator:4.12.1951dca8076ecc
google.golang.org/grpc@v1.81.1
1.83.1
1
gresearch/armada-executor:latest393aff4aa8f2
google.golang.org/grpc@v1.81.1
1.83.1
1
gresearch/armada-lookout:latestf5e3226f1d33
google.golang.org/grpc@v1.81.1
1.83.1
1
gresearch/armada-lookout-ingester:latest3df14cda1855
google.golang.org/grpc@v1.81.1
1.83.1
1
gresearch/armada-scheduler:latest6141a6213fcb
google.golang.org/grpc@v1.81.1
1.83.1
1
gresearch/fasttrackml:latest16d1228220fc
google.golang.org/grpc@v1.63.2
1.83.1
1
grpl/grapple-cli:0.2.127c00aafee6629
google.golang.org/grpc@v1.65.0
1.83.1
1

syft 1.42.1 · advisories as of 17 Sept 2026

Corrections: contact@stackradar.io

Catalogue: Artifact Hub · Advisories: OSV · Exploitation: FIRST EPSS, CISA KEV.