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
2,305
of 17,813 indexed, latest versions
Container images
2,756
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 2,305 of 17,813 indexed charts deploy, on 2,756 images.

Affected packageAffected versionsFixed inImages
google.golang.org/grpcgolangv0.0.0-20160317175043-d3ddb4469d5a, v0.0.0-20170216003643-d0c32ee6a441, v1.10.0, v1.14.0+115 more1.83.12,752
grpcdeb1.16.1-1ubuntu5, 1.51.1-4.1build5no fix listed4
OSV records
GHSA-qc2q-p7wx-3px3UBUNTU-CVE-2026-84303
Also known as
GO-2026-6441

Charts affected

2,305 by stars
ChartLatestAffected imagesRadar Score
kommandermesosphere-stable0.39.212 of 29See more

kommander mesosphere-stable 0.39.2

12 of the 29 container images this version deploys carry CVE-2026-84303.

Container imageDigestPackageFixed in
grafana/grafana:6.6.0052147d7e0ec
google.golang.org/grpc@v1.23.1
1.83.1
mesosphere/kommander-federation-authorizedlister:v0.21.263bc411b930b
google.golang.org/grpc@v1.26.0
1.83.1
mesosphere/kommander-federation-controller-manager:v0.21.2b036785a8862
google.golang.org/grpc@v1.26.0
1.83.1
mesosphere/kommander-federation-utility-apiserver:v0.21.2f9b769c65e24
google.golang.org/grpc@v1.26.0
1.83.1
mesosphere/kommander-federation-webhook:v0.21.294af41b6dd9a
google.golang.org/grpc@v1.26.0
1.83.1
prom/prometheus:v2.19.2cd134bd4fca0
google.golang.org/grpc@v1.29.1
1.83.1
thanosio/thanos:v0.19.088276fcd1491
google.golang.org/grpc@v1.29.1
1.83.1
thanosio/thanos:v0.15.0b12d5c31bf5a
google.golang.org/grpc@v1.29.1
1.83.1
gcr.io/kubecost1/cost-model:prod-1.81.067f4f162da8d
google.golang.org/grpc@v1.27.1
1.83.1
gcr.io/kubecost1/server:prod-1.81.0a348db3e4d74
google.golang.org/grpc@v1.19.1
1.83.1
quay.io/kubernetes-multicluster/kubefed:v0.7.06d56f69b15a3
google.golang.org/grpc@v1.27.1
1.83.1
quay.io/thanos/thanos:v0.17.1e362f02ed304
google.golang.org/grpc@v1.29.1
1.83.1

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68,465
kube-prometheus-stackmesosphere-stable75.9.12 of 7See more

kube-prometheus-stack mesosphere-stable 75.9.1

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

Container imageDigestPackageFixed in
grafana/grafana:12.0.2b5b59bfc7561
google.golang.org/grpc@v1.72.1
1.83.1
registry.k8s.io/kube-state-metrics/kube-state-metrics:v2.16.0e750cd4b43f7
google.golang.org/grpc@v1.68.1
1.83.1

Open the chart page →

10,580
multusmesosphere-stable0.1.11 of 1See more

multus mesosphere-stable 0.1.1

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

Container imageDigestPackageFixed in
ghcr.io/k8snetworkplumbingwg/multus-cni:v4.2.4-thick3c20900b5381
google.golang.org/grpc@v1.73.0
1.83.1

Open the chart page →

1,834
cortexmetakube0.6.01 of 2See more

cortex metakube 0.6.0

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

Container imageDigestPackageFixed in
quay.io/cortexproject/cortex:v1.9.05d1c2cf4c538
google.golang.org/grpc@v1.36.0
1.83.1

Open the chart page →

4,116
istio-operatormetakube1.12.01 of 1See more

istio-operator metakube 1.12.0

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

Container imageDigestPackageFixed in
istio/operator:1.12.06cfce8a071b9
google.golang.org/grpc@v1.42.0
1.83.1

Open the chart page →

8,972
wg-access-servermglants0.4.71 of 1See more

wg-access-server mglants 0.4.7

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

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2,753
kube-agent-chartmiddleware-labsVerified publisher0.1.21 of 1See more

kube-agent-chart middleware-labs 0.1.2

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

Container imageDigestPackageFixed in
ghcr.io/middleware-labs/agent-kube-go:dev17369c4cd390
google.golang.org/grpc@v1.51.0
1.83.1

Open the chart page →

1,808
middleware-odigosmiddleware-labsVerified publisher0.2.411 of 6See more

middleware-odigos middleware-labs 0.2.41

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

Container imageDigestPackageFixed in
ghcr.io/middleware-labs/odigos-odiglet:middleware-test-0.0.103c8c835ecee
google.golang.org/grpc@v1.49.0
1.83.1

Open the chart page →

8,385
middleware-visionmiddleware-labsVerified publisher0.2.651 of 6See more

middleware-vision middleware-labs 0.2.65

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

Container imageDigestPackageFixed in
ghcr.io/middleware-labs/vision-odiglet:middleware-test-0.0.3bce34c98668e
google.golang.org/grpc@v1.49.0
1.83.1

Open the chart page →

8,377
mw-autoinstrumentationmiddleware-labsVerified publisher1.2.62 of 6See more

mw-autoinstrumentation middleware-labs 1.2.6

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

Container imageDigestPackageFixed in
ghcr.io/open-telemetry/opentelemetry-operator/opentelemetry-operator:0.132.05e331c925091
google.golang.org/grpc@v1.73.0
1.83.1
quay.io/brancz/kube-rbac-proxy:v0.19.19f21034731c7
google.golang.org/grpc@v1.65.0
1.83.1

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3,755
mw-kube-agentmiddleware-labsVerified publisher0.1.21 of 1See more

mw-kube-agent middleware-labs 0.1.2

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

Container imageDigestPackageFixed in
ghcr.io/middleware-labs/mw-kube-agent:master056f0953763d
google.golang.org/grpc@v1.57.0
1.83.1

Open the chart page →

1,611
mw-kube-agent-v3middleware-labsVerified publisher1.8.51 of 2See more

mw-kube-agent-v3 middleware-labs 1.8.5

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

Container imageDigestPackageFixed in
ghcr.io/middleware-labs/mw-kube-agent:1.21.0ff23f452813a
google.golang.org/grpc@v1.81.0
1.83.1

Open the chart page →

2,101
argocd-extra-app-info-exportermikejohVerified publisher0.1.121 of 1See more

argocd-extra-app-info-exporter mikejoh 0.1.12

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

Container imageDigestPackageFixed in
mikejoh/argocd-extra-app-info-exporter:0.2.05c5a3b734271
google.golang.org/grpc@v1.66.2
1.83.1

Open the chart page →

1,365
miniomilvus-helm8.0.201 of 1See more

minio milvus-helm 8.0.20

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

Container imageDigestPackageFixed in
minio/minio:RELEASE.2024-05-28T17-19-04Z391d1d45fdbe
google.golang.org/grpc@v1.64.0
1.83.1

Open the chart page →

1,685
pulsarv2milvus-helm2.7.82 of 4See more

pulsarv2 milvus-helm 2.7.8

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

Container imageDigestPackageFixed in
prom/prometheus:v2.17.242d2395cd719
google.golang.org/grpc@v1.27.1
1.83.1
streamnative/apache-pulsar-grafana-dashboard-k8s:0.0.10ebcf7f033b54
google.golang.org/grpc@v1.23.1
1.83.1

Open the chart page →

15,885
milvus-operatormilvus-operator1.3.91 of 1See more

milvus-operator milvus-operator 1.3.9

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

Container imageDigestPackageFixed in
milvusdb/milvus-operator:v1.3.95d63c8894f3a
google.golang.org/grpc@v1.82.1
1.83.1

Open the chart page →

243
aws-api-gateway-operatormintel0.1.21 of 11See more

aws-api-gateway-operator mintel 0.1.2

1 of the 11 container images this version deploys carry CVE-2026-84303.

Container imageDigestPackageFixed in
library/docker:20.10-dindaf96c680a7e1
google.golang.org/grpc@v1.50.1
1.83.1

Open the chart page →

10,793
standard-application-stackmintel11.5.01 of 12See more

standard-application-stack mintel 11.5.0

1 of the 12 container images this version deploys carry CVE-2026-84303.

Container imageDigestPackageFixed in
library/docker:20.10-dindaf96c680a7e1
google.golang.org/grpc@v1.50.1
1.83.1

Open the chart page →

10,702
jupyterhubmizzoukube0.0.1-set.by.chartpress1 of 7See more

jupyterhub mizzoukube 0.0.1-set.by.chartpress

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

Container imageDigestPackageFixed in
registry.k8s.io/kube-scheduler:v1.28.73ae5620a33bb
google.golang.org/grpc@v1.56.3
1.83.1

Open the chart page →

1,897
cert-manager-webhook-duckdnsmmontesVerified publisher1.2.31 of 1See more

cert-manager-webhook-duckdns mmontes 1.2.3

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

Container imageDigestPackageFixed in
ebrianne/cert-manager-webhook-duckdns:v1.2.39cd17700c9ec
google.golang.org/grpc@v1.27.0
1.83.1

Open the chart page →

2,855
cockroachdb-operatormmontesVerified publisher0.1.01 of 1See more

cockroachdb-operator mmontes 0.1.0

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

Container imageDigestPackageFixed in
cockroachdb/cockroach-operator:v2.1.0983312754620
google.golang.org/grpc@v1.29.1
1.83.1

Open the chart page →

7,800
corednsmoikot1.13.31 of 1See more

coredns moikot 1.13.3

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

Container imageDigestPackageFixed in
coredns/coredns:1.7.073ca82b4ce82
google.golang.org/grpc@v1.29.1
1.83.1

Open the chart page →

2,555
cloudflare-tunnel-remotemoonswitchVerified publisher0.1.41 of 1See more

cloudflare-tunnel-remote moonswitch 0.1.4

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

Container imageDigestPackageFixed in
cloudflare/cloudflared:latest51c9cefcb456
google.golang.org/grpc@v1.83.0
1.83.1

Open the chart page →

572
mqtt-loggermoreillonVerified publisher0.3.11 of 5See more

mqtt-logger moreillon 0.3.1

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

Container imageDigestPackageFixed in
bitnamilegacy/influxdb:2.6.1-debian-11-r18d17df1f9d745
google.golang.org/grpc@v1.47.0
1.83.1

Open the chart page →

11,037
backupmorremeyer4.0.01 of 1See more

backup morremeyer 4.0.0

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

Container imageDigestPackageFixed in
restic/restic:0.15.2579e4e6a4931
google.golang.org/grpc@v1.54.0
1.83.1

Open the chart page →

2,303
hcloud-ccm-networksmorremeyer2.0.01 of 1See more

hcloud-ccm-networks morremeyer 2.0.0

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

Container imageDigestPackageFixed in
hetznercloud/hcloud-cloud-controller-manager:v1.16.08c07e6d7a76c
google.golang.org/grpc@v1.51.0
1.83.1

Open the chart page →

1,754
hcloud-csi-drivermorremeyer3.0.06 of 6See more

hcloud-csi-driver morremeyer 3.0.0

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

Container imageDigestPackageFixed in
hetznercloud/hcloud-csi-driver:v2.3.2b7ed90d5fab2
google.golang.org/grpc@v1.52.0
1.83.1
registry.k8s.io/sig-storage/csi-attacher:v4.1.008721106b949
google.golang.org/grpc@v1.51.0
1.83.1
registry.k8s.io/sig-storage/csi-node-driver-registrar:v2.7.04a4cae5118c4
google.golang.org/grpc@v1.51.0
1.83.1
registry.k8s.io/sig-storage/csi-provisioner:v3.4.0e468dddcd275
google.golang.org/grpc@v1.51.0
1.83.1
registry.k8s.io/sig-storage/csi-resizer:v1.7.03a7bdf5d1057
google.golang.org/grpc@v1.51.0
1.83.1
registry.k8s.io/sig-storage/livenessprobe:v2.9.02b10b24dafdc
google.golang.org/grpc@v1.49.0
1.83.1

Open the chart page →

7,192
chirpstackmosquitto-helm-chart0.5.02 of 8See more

chirpstack mosquitto-helm-chart 0.5.0

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

Container imageDigestPackageFixed in
chirpstack/chirpstack-application-server:3fb7667fe037f
google.golang.org/grpc@v1.33.1
1.83.1
chirpstack/chirpstack-network-server:3c0bbbb7a3f1e
google.golang.org/grpc@v1.33.1
1.83.1

Open the chart page →

101,376
filestashmt1905024.0.01 of 1See more

filestash mt190502 4.0.0

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

Container imageDigestPackageFixed in
machines/filestash:latest0b8fc005e52e
google.golang.org/grpc@v1.80.0
1.83.1

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3,615
maddymt1905024.1.21 of 1See more

maddy mt190502 4.1.2

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

Container imageDigestPackageFixed in
foxcpp/maddy:0.9.2a4b839985b9b
google.golang.org/grpc@v1.70.0
1.83.1

Open the chart page →

1,045
memosmt1905027.3.21 of 3See more

memos mt190502 7.3.2

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

Container imageDigestPackageFixed in
neosmemo/memos:0.26.23eefcc231141
google.golang.org/grpc@v1.75.1
1.83.1

Open the chart page →

2,668
multusmultusVerified publisher0.2.02 of 2See more

multus multus 0.2.0

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

Container imageDigestPackageFixed in
ghcr.io/k8snetworkplumbingwg/multus-cni:v4.1.409fdfb7ce090
google.golang.org/grpc@v1.58.3
1.83.1
ghcr.io/k8snetworkplumbingwg/multus-dynamic-networks-controller:v0.3.72a2bb32c0ea8
google.golang.org/grpc@v1.69.2
1.83.1

Open the chart page →

1,866
devops-demomungari-development-charts1.0.42 of 4See more

devops-demo mungari-development-charts 1.0.4

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

Container imageDigestPackageFixed in
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 →

9,041
approuvezmvisonneau0.1.11 of 1See more

approuvez mvisonneau 0.1.1

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

Container imageDigestPackageFixed in
ghcr.io/mvisonneau/approuvez:v0.1.0441da62e6cb3
google.golang.org/grpc@v1.35.0
1.83.1

Open the chart page →

1,979
authmyaVerified publisher22.4.31 of 1See more

auth mya 22.4.3

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

Container imageDigestPackageFixed in
cesanta/docker_auth:1.6.04d16885f3d4c
google.golang.org/grpc@v1.21.1
1.83.1

Open the chart page →

2,382
cognativemyaVerified publisher0.2403.32 of 3See more

cognative mya 0.2403.3

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

Container imageDigestPackageFixed in
grafana/grafana:10.4.0f9811e4e687f
google.golang.org/grpc@v1.60.1
1.83.1
otel/opentelemetry-collector-contrib:0.96.07ef2a2ff46b9
google.golang.org/grpc@v1.62.0
1.83.1

Open the chart page →

7,408
giteamyaVerified publisher23.12.51 of 1See more

gitea mya 23.12.5

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

Container imageDigestPackageFixed in
gitea/gitea:1.21.6ac73e0da341f
google.golang.org/grpc@v1.58.3
1.83.1

Open the chart page →

3,438
myhelmappmyhelmapp0.1.11 of 1See more

myhelmapp myhelmapp 0.1.1

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

Container imageDigestPackageFixed in
tobirachel/node-project3:v17d9f37154994
google.golang.org/grpc@v1.39.0
1.83.1

Open the chart page →

3,369
grafana-chartmy-personal-grafana0.1.01 of 1See more

grafana-chart my-personal-grafana 0.1.0

1 of the 1 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

Open the chart page →

745
influxdbmy-personal-influxdb20.1.01 of 1See more

influxdb my-personal-influxdb2 0.1.0

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

Container imageDigestPackageFixed in
library/influxdb:2.7b8d940ca9376
google.golang.org/grpc@v1.64.1
1.83.1

Open the chart page →

3,923
jupyterhub-metricsncsaVerified publisher1.3.02 of 5See more

jupyterhub-metrics ncsa 1.3.0

2 of the 5 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
migrate/migrate:latestcc4ad8e19d66
google.golang.org/grpc@v1.74.2
1.83.1

Open the chart page →

4,170
uptime-kumancsaVerified publisher1.7.21 of 1See more

uptime-kuma ncsa 1.7.2

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

Container imageDigestPackageFixed in
louislam/uptime-kuma:2.5.4917318f9d7be
google.golang.org/grpc@v1.79.2
1.83.1

Open the chart page →

30,707
papergirlneoskop3.2.61 of 5See more

papergirl neoskop 3.2.6

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

Container imageDigestPackageFixed in
minio/mc:RELEASE.2022-05-09T04-08-26Z4b415310d8d0
google.golang.org/grpc@v1.43.0
1.83.1

Open the chart page →

6,995
neosyncneosyncVerified publisher0.5.412 of 3See more

neosync neosync 0.5.41

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

Container imageDigestPackageFixed in
ghcr.io/nucleuscloud/neosync/api:0.5.41e2abb798f29f
google.golang.org/grpc@v1.71.0
1.83.1
ghcr.io/nucleuscloud/neosync/worker:0.5.4196f42450c5b1
google.golang.org/grpc@v1.71.0
1.83.1

Open the chart page →

7,333
apineosync-apiVerified publisher0.5.411 of 1See more

api neosync-api 0.5.41

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

Container imageDigestPackageFixed in
ghcr.io/nucleuscloud/neosync/api:0.5.41e2abb798f29f
google.golang.org/grpc@v1.71.0
1.83.1

Open the chart page →

2,890
workerneosync-workerVerified publisher0.5.411 of 1See more

worker neosync-worker 0.5.41

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

Container imageDigestPackageFixed in
ghcr.io/nucleuscloud/neosync/worker:0.5.4196f42450c5b1
google.golang.org/grpc@v1.71.0
1.83.1

Open the chart page →

2,868
netbirdnetbird1.9.03 of 4See more

netbird netbird 1.9.0

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

Container imageDigestPackageFixed in
netbirdio/management:0.46.0b0adc4ad4ec6
google.golang.org/grpc@v1.64.1
1.83.1
netbirdio/relay:0.46.0d32f82514a24
google.golang.org/grpc@v1.64.1
1.83.1
netbirdio/signal:0.46.0e8f392611152
google.golang.org/grpc@v1.64.1
1.83.1

Open the chart page →

6,482
netris-dpu-agentnetrisai0.1.01 of 1See more

netris-dpu-agent netrisai 0.1.0

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

Container imageDigestPackageFixed in
netrisai/bare-metal-dpu-agent:4.7.0.003c271efe749d0
google.golang.org/grpc@v1.65.1
1.83.1

Open the chart page →

1,598
agent-controlnewrelic0.0.921 of 1See more

agent-control newrelic 0.0.92

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

Container imageDigestPackageFixed in
newrelic/newrelic-agent-control-cli:0.48.01a448492b55a
google.golang.org/grpc@v1.68.1
1.83.1

Open the chart page →

3,925
agent-control-cdnewrelic1.0.02 of 3See more

agent-control-cd newrelic 1.0.0

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

Container imageDigestPackageFixed in
ghcr.io/fluxcd/helm-controller:v1.2.062eaa9c9a929
google.golang.org/grpc@v1.65.0
1.83.1
ghcr.io/fluxcd/source-controller:v1.5.000cd9316a379
google.golang.org/grpc@v1.68.1
1.83.1

Open the chart page →

5,519

Container images carrying it

2,756 by charts deploying them

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

Container imageDigestPackageFixed inUsed by
registry.k8s.io/sig-storage/hostpathplugin:v1.9.092257881c1d6
google.golang.org/grpc@v1.34.0
1.83.1
1
registry.k8s.io/sig-storage/livenessprobe:v2.9.02b10b24dafdc
google.golang.org/grpc@v1.49.0
1.83.1
1
registry.k8s.io/sig-storage/livenessprobe:v2.11.082adbebdf5d5
google.golang.org/grpc@v1.58.0
1.83.1
1
registry.k8s.io/sig-storage/nfsplugin:v4.13.41eb5a85180a4
google.golang.org/grpc@v1.79.3
1.83.1
1
registry.k8s.io/sig-storage/nfsplugin:v4.11.0ce5b5ccd5eb0
google.golang.org/grpc@v1.71.0
1.83.1
1
registry.k8s.io/sig-storage/objectstorage-sidecar:v0.2.2c7166a73a303
google.golang.org/grpc@v1.74.2
1.83.1
1

syft 1.42.1 · advisories as of 20 Sept 2026

Corrections: contact@stackradar.io

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