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/alloy:v1.18.10f4434c92b3e
google.golang.org/grpc@v1.82.1
1.83.1
1
grafana/alloy:v1.18.0491b0578c049
google.golang.org/grpc@v1.81.1
1.83.1
1
grafana/alloy:v1.16.384b76d56c594
google.golang.org/grpc@v1.80.0
1.83.1
1
grafana/alloy:v1.11.38c7256f412fe
google.golang.org/grpc@v1.75.0
1.83.1
1
grafana/alloy:v1.19.2b8ec653c4423
google.golang.org/grpc@v1.83.0
1.83.1
1
grafana/alloy:v1.1.1c3dac4e26471
google.golang.org/grpc@v1.63.2
1.83.1
1
grafana/alloy:v1.14.0f50931848bd8
google.golang.org/grpc@v1.78.0
1.83.1
1
grafana/beyla:1.3.336d07f8d276e
google.golang.org/grpc@v1.61.0
1.83.1
1
grafana/beyla:3.32.03ff0f7cf2bbf
google.golang.org/grpc@v1.82.1
1.83.1
1
grafana/beyla-k8s-cache:253b2f561cb1b
google.golang.org/grpc@v1.77.0
1.83.1
1
grafana/cloudcost-exporter:v1.12.0eeb2cfecb23e
google.golang.org/grpc@v1.81.1
1.83.1
1
grafana/grafana:6.6.0052147d7e0ec
google.golang.org/grpc@v1.23.1
1.83.1
1
grafana/grafana:10.1.50679e877ba20
google.golang.org/grpc@v1.45.0
1.83.1
1
grafana/grafana:7.5.609bb407e26ab
google.golang.org/grpc@v1.36.0
1.83.1
1
grafana/grafana:13.0.10f86bada30d6
google.golang.org/grpc@v1.79.3
1.83.1
1
grafana/grafana:7.3.315b977f5207d
google.golang.org/grpc@v1.30.0
1.83.1
1
grafana/grafana:9.4.71a359d92f40e
google.golang.org/grpc@v1.45.0
1.83.1
1
grafana/grafana:10.1.11b9ca4bbc4a2
google.golang.org/grpc@v1.45.0
1.83.1
1
grafana/grafana:13.0.1-security-012d1f9ae67c17
google.golang.org/grpc@v1.79.3
1.83.1
1
grafana/grafana:12.2.22ebef928d7e5
google.golang.org/grpc@v1.74.2
1.83.1
1
grafana/grafana:12.2.135c41e0fd029
google.golang.org/grpc@v1.74.2
1.83.1
1
grafana/grafana:9.5.239c849cebccc
google.golang.org/grpc@v1.45.0
1.83.1
1
grafana/grafana:11.2.2-security-01464eac539793
google.golang.org/grpc@v1.65.0
1.83.1
1
grafana/grafana:11.5.15781759b3d27
google.golang.org/grpc@v1.69.2
1.83.1
1
grafana/grafana:11.6.062d2b9d20a19
google.golang.org/grpc@v1.70.0
1.83.1
1
grafana/grafana:8.0.3696823fbc561
google.golang.org/grpc@v1.37.1
1.83.1
1
grafana/grafana:10.2.36b5b37eb35bb
google.golang.org/grpc@v1.59.0
1.83.1
1
grafana/grafana:7.3.46d42886b3ebe
google.golang.org/grpc@v1.30.0
1.83.1
1
grafana/grafana:12.3.070d9599b186c
google.golang.org/grpc@v1.76.0
1.83.1
1
grafana/grafana:7.2.1733842cca5bd
google.golang.org/grpc@v1.30.0
1.83.1
1
grafana/grafana:12.2.074144189b384
google.golang.org/grpc@v1.74.2
1.83.1
1
grafana/grafana:9.4.376dcf36e7d2a
google.golang.org/grpc@v1.45.0
1.83.1
1
grafana/grafana:10.3.38640e5038e83
google.golang.org/grpc@v1.60.1
1.83.1
1
grafana/grafana:11.5.28b37a2f028f1
google.golang.org/grpc@v1.69.2
1.83.1
1
grafana/grafana:9.1.19746858c20e6
google.golang.org/grpc@v1.45.0
1.83.1
1
grafana/grafana:12.1.1a1701c218024
google.golang.org/grpc@v1.73.0
1.83.1
1
grafana/grafana:9.0.1a738d0744784
google.golang.org/grpc@v1.45.0
1.83.1
1
grafana/grafana:10.4.19a9043254ba16
google.golang.org/grpc@v1.71.0
1.83.1
1
grafana/grafana:13.1.3ab5cb380e3ff
google.golang.org/grpc@v1.82.1
1.83.1
1
grafana/grafana:11.1.3b23b588cf7cb
google.golang.org/grpc@v1.64.0
1.83.1
1
grafana/grafana:12.0.2b5b59bfc7561
google.golang.org/grpc@v1.72.1
1.83.1
1
grafana/grafana:12.3.2ba93c9d192e5
google.golang.org/grpc@v1.77.0
1.83.1
1
grafana/grafana:6.5.1befcd84da2c1
google.golang.org/grpc@v1.23.1
1.83.1
1
grafana/grafana:8.3.5cd7cb4345aa7
google.golang.org/grpc@v1.41.0
1.83.1
1
grafana/grafana:8.3.4cf81d2c753c8
google.golang.org/grpc@v1.41.0
1.83.1
1
grafana/grafana:7.4.5d322192ed2fa
google.golang.org/grpc@v1.35.0
1.83.1
1
grafana/grafana:8.5.3ecc1b80b8ca2
google.golang.org/grpc@v1.42.0
1.83.1
1
grafana/grafana:10.4.0f9811e4e687f
google.golang.org/grpc@v1.60.1
1.83.1
1
grafana/grafana:11.3.1fa801ab6e1ae
google.golang.org/grpc@v1.66.0
1.83.1
1
grafana/logcli:main-c90366d-amd643d85bb66e39b
google.golang.org/grpc@v1.37.0
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.