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
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 →

9,526
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 →

1,966
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 →

8,002
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 →

936
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 →

5,077

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
ghcr.io/drakkan/sftpgo:v2.7.59011fe608d33
google.golang.org/grpc@v1.82.1
1.83.1
1
ghcr.io/dsp0x4/cloudfront-tenant-operator:0.3.0eb40174cd20d
google.golang.org/grpc@v1.79.3
1.83.1
1
ghcr.io/dynamia-ai/hami-enterprise:v2.10.0-r0-openshift.c4e22e88745504757300
google.golang.org/grpc@v1.83.0
1.83.1
1
ghcr.io/edgelesssys/continuum/continuum-proxy24c76f294a80
google.golang.org/grpc@v1.69.0
1.83.1
1
ghcr.io/edgelesssys/coordinator:v0.5.0bcd5b8d4c45c
google.golang.org/grpc@v1.36.0
1.83.1
1
ghcr.io/element-hq/lk-jwt-service:0.6.0822f0c03a3bd
google.golang.org/grpc@v1.81.1
1.83.1
1
ghcr.io/emissary-ingress/emissary:4.1.04a981156abee
google.golang.org/grpc@v1.67.3
1.83.1
1
ghcr.io/emqx/emqx-operator:2.3.23333ed546165
google.golang.org/grpc@v1.65.0
1.83.1
1
ghcr.io/ente/server:0472c929b6070e61fecaf2013d47efce2dcda462f646b68a1b8d
google.golang.org/grpc@v1.82.1
1.83.1
1
ghcr.io/eraser-dev/eraser-manager:v1.4.2cda6025d1152
google.golang.org/grpc@v1.82.1
1.83.1
1
ghcr.io/erpc/erpc:0.1.18bfed3d49a08
google.golang.org/grpc@v1.81.1
1.83.1
1
ghcr.io/erpc/erpc:0.0.49f5654f745d4c
google.golang.org/grpc@v1.67.1
1.83.1
1
ghcr.io/estahn/k8s-image-swapper:1.5.102f5be9cde5f9
google.golang.org/grpc@v1.59.0
1.83.1
1
ghcr.io/ethpandaops/syncoor:master233aa9808fc7
google.golang.org/grpc@v1.81.1
1.83.1
1
ghcr.io/evilgn0me/ingressmonitorcontroller:v0.0.50bbfa4db14b9
google.golang.org/grpc@v1.67.1
1.83.1
1
ghcr.io/exalsius/exalsius-operator:0.12.0d24a579a3c75
google.golang.org/grpc@v1.75.1
1.83.1
1
ghcr.io/external-secrets/external-secrets:v0.3.1156a1ea4490ba
google.golang.org/grpc@v1.27.0
1.83.1
1
ghcr.io/external-secrets/external-secrets:v2.4.19440a40b3947
google.golang.org/grpc@v1.79.3
1.83.1
1
ghcr.io/external-secrets/external-secrets:v2.1.0ec40c3d9c48f
google.golang.org/grpc@v1.76.0
1.83.1
1
ghcr.io/extrality/cert-manager-webhook-namecheap:lateste3552fa0c68a
google.golang.org/grpc@v1.54.0
1.83.1
1
ghcr.io/fabioluciano/tekton-events-relay:0.10.184cb5a2b8b81
google.golang.org/grpc@v1.81.1
1.83.1
1
ghcr.io/ferretdb/ferretdb:2.7.05706414241eb
google.golang.org/grpc@v1.75.0
1.83.1
1
ghcr.io/ferro-labs/ai-gateway:1.2.0baa285ec0fc9
google.golang.org/grpc@v1.81.1
1.83.1
1
ghcr.io/fission/fission-bundle:v1.27.0d353720b037a
google.golang.org/grpc@v1.81.1
1.83.1
1
ghcr.io/flannel-io/flannel:v0.28.9708a2c9c1cfb
google.golang.org/grpc@v1.82.1
1.83.1
1
ghcr.io/flohansen/dasher-server:latest7cde8c3fa2d1
google.golang.org/grpc@v1.64.0
1.83.1
1
ghcr.io/fluent/fluent-operator/fluent-operator:3.10.03108194a4ecc
google.golang.org/grpc@v1.82.1
1.83.1
1
ghcr.io/fluxcd/flagger:1.45.015b372d35012
google.golang.org/grpc@v1.83.0
1.83.1
1
ghcr.io/fluxcd/flagger-loadtester:0.39.06a8546993cb5
google.golang.org/grpc@v1.67.1
1.83.1
1
ghcr.io/fluxcd/flux-cli:v2.9.1020edbaee890
google.golang.org/grpc@v1.80.0
1.83.1
1
ghcr.io/fluxcd/helm-controller:v1.2.062eaa9c9a929
google.golang.org/grpc@v1.65.0
1.83.1
1
ghcr.io/fluxcd/helm-controller:v1.6.48ff15409e46d
google.golang.org/grpc@v1.82.1
1.83.1
1
ghcr.io/fluxcd/helm-controller:v1.6.2e17ab0e5885d
google.golang.org/grpc@v1.80.0
1.83.1
1
ghcr.io/fluxcd/image-automation-controller:v1.2.5e1a2720d3951
google.golang.org/grpc@v1.80.0
1.83.1
1
ghcr.io/fluxcd/image-reflector-controller:v1.2.5c83ce5c06fed
google.golang.org/grpc@v1.80.0
1.83.1
1
ghcr.io/fluxcd/kustomize-controller:v1.9.5a3a955eb2bc4
google.golang.org/grpc@v1.81.1
1.83.1
1
ghcr.io/fluxcd/notification-controller:v1.9.4840f318265ee
google.golang.org/grpc@v1.81.1
1.83.1
1
ghcr.io/fluxcd/source-controller:v1.5.000cd9316a379
google.golang.org/grpc@v1.68.1
1.83.1
1
ghcr.io/fluxcd/source-controller:v1.9.22b8d06650a1b
google.golang.org/grpc@v1.81.1
1.83.1
1
ghcr.io/fluxcd/source-controller:v1.9.56f20d232d596
google.golang.org/grpc@v1.82.1
1.83.1
1
ghcr.io/formancehq/dex:v1.0.4b803fbe1cdb8
google.golang.org/grpc@v1.46.2
1.83.1
1
ghcr.io/formancehq/ledger:v1.9.203c1ddbda33b
google.golang.org/grpc@v1.51.0
1.83.1
1
ghcr.io/formancehq/membership:v1.11.024a0113d5fb0
google.golang.org/grpc@v1.74.2
1.83.1
1
ghcr.io/foxcpp/maddy:0.9.5de42151adff6
google.golang.org/grpc@v1.70.0
1.83.1
1
ghcr.io/gabe565/castsponsorskip:0.8.15f7b4c6dd299
google.golang.org/grpc@v1.68.0
1.83.1
1
ghcr.io/gabe565/transsmute:latestc8ac95a30c31
google.golang.org/grpc@v1.71.0
1.83.1
1
ghcr.io/geek-cookbook/webhook-receiver:2.8.172e7e77f8091
google.golang.org/grpc@v1.56.3
1.83.1
1
ghcr.io/georgmangold/console:v1.8.158f4f180aa6e
google.golang.org/grpc@v1.70.0
1.83.1
1
ghcr.io/glassflow/glassflow-etl-be:v3.2.020f066d0f631
google.golang.org/grpc@v1.80.0
1.83.1
1
ghcr.io/glassflow/glassflow-etl-migration:v3.2.07db1a1bf3dae
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.