StackRadar

CVE-2026-39820

High

Advisory

Published 7 May 2026In the index since 5 Sept 2026
Severity
High
worst across findings
CVSS
7.5
base score, highest
EPSS
0.009
57th percentile
CISA KEV
Not listed
no confirmed exploitation
Charts affected
4,212
of 17,985 indexed, latest versions
Container images
4,739
deployed by those charts
Fix available
1 of 2
affected packages

Quadratic string concatentation in consumeComment in net/mail

Carried by container images the latest versions of 4,212 of 17,985 indexed charts deploy, on 4,739 images.

Affected packageAffected versionsFixed inImages
golang-1.19deb1.19.8-2no fix listed1
stdlibgolanggo1.13, go1.13.1, go1.13.3, go1.13.4+183 more1.25.104,739
OSV records
DEBIAN-CVE-2026-39820GO-2026-4986
Also known as
BIT-golang-2026-39820

Charts affected

4,212 by stars
ChartLatestAffected imagesRadar Score
kubebenchfairwinds-incubator1.0.51 of 2See more

kubebench fairwinds-incubator 1.0.5

1 of the 2 container images this version deploys carry CVE-2026-39820.

Container imageDigestPackageFixed in
aquasec/kube-bench:v0.15.07a8fa32dce21
stdlib@go1.26.0
1.25.10

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1,219
oom-event-generatorfairwinds-incubator0.2.21 of 1See more

oom-event-generator fairwinds-incubator 0.2.2

1 of the 1 container images this version deploys carry CVE-2026-39820.

Container imageDigestPackageFixed in
xingse/kubernetes-oom-event-generator:v1.2.09f9d5492e4bf
stdlib@go1.13
1.25.10

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4,790
skopeo-syncfairwinds-incubator0.3.11 of 1See more

skopeo-sync fairwinds-incubator 0.3.1

1 of the 1 container images this version deploys carry CVE-2026-39820.

Container imageDigestPackageFixed in
quay.io/skopeo/stable:v1.134853591bd1d2
stdlib@go1.21.0
1.25.10

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1,738
stackdriver-metrics-adapterfairwinds-incubator0.3.01 of 1See more

stackdriver-metrics-adapter fairwinds-incubator 0.3.0

1 of the 1 container images this version deploys carry CVE-2026-39820.

Container imageDigestPackageFixed in
gcr.io/gke-release/custom-metrics-stackdriver-adapter:v0.13.1-gke.06937c0a9b203
stdlib@go1.19.3
1.25.10

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1,766
yelbfairwinds-incubator0.1.11 of 5See more

yelb fairwinds-incubator 0.1.1

1 of the 5 container images this version deploys carry CVE-2026-39820.

Container imageDigestPackageFixed in
library/postgres:latest86c951e05bf5
stdlib@go1.24.6
1.25.10

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5,171
fairwinds-insightsfairwinds-stableVerified publisher10.7.01See more

fairwinds-insights fairwinds-stable 10.7.0

1 container image this version deploys carries CVE-2026-39820.

Container imageDigestPackageFixed in
alpine/kubectl:1.35.49ccd82364762
stdlib@go1.25.9
1.25.10

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—
fake-network-operatorfake-network-operatorVerified publisher0.1.01 of 1See more

fake-network-operator fake-network-operator 0.1.0

1 of the 1 container images this version deploys carry CVE-2026-39820.

Container imageDigestPackageFixed in
ghcr.io/muhmmadayan/fake-network-operator:0.1.03806b1fd4a4b
stdlib@go1.23.12
1.25.10

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513
farm-observabilityfarm-observabilityOfficialVerified publisher0.27.211 of 18See more

farm-observability farm-observability 0.27.2

11 of the 18 container images this version deploys carry CVE-2026-39820.

Container imageDigestPackageFixed in
grafana/alloy:v1.12.2f94b1c82957a
stdlib@go1.25.5
1.25.10
grafana/grafana:13.0.1-security-012d1f9ae67c17
stdlib@go1.26.2
1.25.10
grafana/loki:3.6.73c8fd3570dd9
stdlib@go1.24.13
1.25.10
grafana/loki-canary:3.6.70dac7d5cb383
stdlib@go1.24.13
1.25.10
grafana/tempo:2.9.065a578975943
stdlib@go1.25.1
1.25.10
prom/memcached-exporter:v0.15.4b6763ecb3c47
stdlib@go1.25.3
1.25.10
quay.io/prometheus-operator/prometheus-config-reloader:v0.91.07d9e4eea5f11
stdlib@go1.25.9
1.25.10
quay.io/prometheus-operator/prometheus-config-reloader:v0.81.0959d47672fbf
stdlib@go1.23.7
1.25.10
quay.io/prometheus-operator/prometheus-operator:v0.91.09e53e1313921
stdlib@go1.25.9
1.25.10
quay.io/prometheus/node-exporter:v1.11.1-distroless6112664fd761
stdlib@go1.26.1
1.25.10
registry.k8s.io/kube-state-metrics/kube-state-metrics:v2.19.06b2f0b6f2f86
stdlib@go1.26.2
1.25.10

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14,268
jenkinsfatihtepe-jenkins1.0.01 of 1See more

jenkins fatihtepe-jenkins 1.0.0

1 of the 1 container images this version deploys carry CVE-2026-39820.

Container imageDigestPackageFixed in
jenkins/jenkins:ltsc1e4c349365f
stdlib@go1.25.3
1.25.10

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2,846
fauxgpufauxgpuVerified publisher0.2.41 of 4See more

fauxgpu fauxgpu 0.2.4

1 of the 4 container images this version deploys carry CVE-2026-39820.

Container imageDigestPackageFixed in
ghcr.io/devops-dojo7/fauxgpu/device-plugin:0.2.4e5a12388e3d8
stdlib@go1.23.12
1.25.10

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3,381
quickstartfeatureformVerified publisher0.1.12 of 3See more

quickstart featureform 0.1.1

2 of the 3 container images this version deploys carry CVE-2026-39820.

Container imageDigestPackageFixed in
featureformcom/quickstart-loader:latest82396f8fb5e8
stdlib@go1.21.11
1.25.10
library/postgres:latest86c951e05bf5
stdlib@go1.24.6
1.25.10

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3,164
activityrelayfedihost0.1.41 of 2See more

activityrelay fedihost 0.1.4

1 of the 2 container images this version deploys carry CVE-2026-39820.

Container imageDigestPackageFixed in
quay.io/argoproj/argocd:v2.4.115b6701d8fb31
stdlib@go1.16.5
1.25.10

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14,251
rospoferama0.4.31 of 1See more

rospo ferama 0.4.3

1 of the 1 container images this version deploys carry CVE-2026-39820.

Container imageDigestPackageFixed in
ghcr.io/ferama/rospo:v0.12.0ab40c1745534
stdlib@go1.21.6
1.25.10

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6,433
vipienferama0.2.81 of 1See more

vipien ferama 0.2.8

1 of the 1 container images this version deploys carry CVE-2026-39820.

Container imageDigestPackageFixed in
ghcr.io/ferama/vipien:v0.5.3923a3f704b21
stdlib@go1.17.8
1.25.10

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7,704
azure-pipelines-agentfermosit0.0.11 of 1See more

azure-pipelines-agent fermosit 0.0.1

1 of the 1 container images this version deploys carry CVE-2026-39820.

Container imageDigestPackageFixed in
jmferrer/azure-devops-agent:latest030f68ec6998
stdlib@go1.13.5
1.25.10

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15,024
ferretdbferretdb-helm-chart0.2.31 of 1See more

ferretdb ferretdb-helm-chart 0.2.3

1 of the 1 container images this version deploys carry CVE-2026-39820.

Container imageDigestPackageFixed in
ghcr.io/ferretdb/ferretdb:2.7.05706414241eb
stdlib@go1.25.4
1.25.10

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773
infrafibonacci-cluster-infraVerified publisher1.0.02 of 4See more

infra fibonacci-cluster-infra 1.0.0

2 of the 4 container images this version deploys carry CVE-2026-39820.

Container imageDigestPackageFixed in
library/postgres:16.4e62fbf9d3e2b
stdlib@go1.18.2
1.25.10
library/redis:7.4.1bb142a9c18ac
stdlib@go1.18.2
1.25.10

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13,391
fickyhelmappfickyhelmapp1.1.01 of 1See more

fickyhelmapp fickyhelmapp 1.1.0

1 of the 1 container images this version deploys carry CVE-2026-39820.

Container imageDigestPackageFixed in
tundeficky/nodejs-app:v1.0.03cf9a9ce54e8
stdlib@go1.17.5
1.25.10

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3,370
grgatefikaworks0.3.41 of 1See more

grgate fikaworks 0.3.4

1 of the 1 container images this version deploys carry CVE-2026-39820.

Container imageDigestPackageFixed in
ghcr.io/fikaworks/grgate:v0.6.37104f60d8972
stdlib@go1.20.2
1.25.10

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1,074
findery-marketfindery-market0.1.01 of 7See more

findery-market findery-market 0.1.0

1 of the 7 container images this version deploys carry CVE-2026-39820.

Container imageDigestPackageFixed in
chandanteekinavar/findery-market-payment-service:1.0c96f759b6ce4
stdlib@go1.19.13
1.25.10

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8,284
fineractfineract-openshift0.1.11 of 4See more

fineract fineract-openshift 0.1.1

1 of the 4 container images this version deploys carry CVE-2026-39820.

Container imageDigestPackageFixed in
library/mariadb:11.470cc072b29b4
stdlib@go1.24.6
1.25.10

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7,857
flask-contactsfirst-idror-chart1.0.11 of 3See more

flask-contacts first-idror-chart 1.0.1

1 of the 3 container images this version deploys carry CVE-2026-39820.

Container imageDigestPackageFixed in
library/mysql:8.07dcddc01f13b
stdlib@go1.24.6
1.25.10

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5,894
first-matefirst-mateVerified publisher1.0.51 of 1See more

first-mate first-mate 1.0.5

1 of the 1 container images this version deploys carry CVE-2026-39820.

Container imageDigestPackageFixed in
chriswells0/first-mate:1.0.5f3918ec8471c
stdlib@go1.20.5
1.25.10

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1,732
business-api-ecosystemfiware1.1.01 of 4See more

business-api-ecosystem fiware 1.1.0

1 of the 4 container images this version deploys carry CVE-2026-39820.

Container imageDigestPackageFixed in
bitnamilegacy/mongodb:3.6.213e51da56fc54
stdlib@go1.15.1
1.25.10

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117,372
dsba-pdpfiware0.1.22 of 2See more

dsba-pdp fiware 0.1.2

2 of the 2 container images this version deploys carry CVE-2026-39820.

Container imageDigestPackageFixed in
quay.io/fiware/dsba-pdp:0.3.20cca71497e9e
stdlib@go1.18.10
1.25.10
quay.io/wi_stefan/dsba-db-migrations:0.0.125b986cd14a08
stdlib@go1.18.9
1.25.10

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4,111
endpoint-auth-servicefiware0.1.43 of 4See more

endpoint-auth-service fiware 0.1.4

3 of the 4 container images this version deploys carry CVE-2026-39820.

Container imageDigestPackageFixed in
expediagroup/kubernetes-sidecar-injector:1.0.1193a00ec8dd4
stdlib@go1.18.3
1.25.10
quay.io/fiware/envoy-configmap-updater:0.4.39eabc3f3e1e2
stdlib@go1.18.5
1.25.10
quay.io/fiware/ishare-auth-provider:0.4.3158108f70f95
stdlib@go1.18.5
1.25.10

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12,055
grafanaflagger1.7.01 of 1See more

grafana flagger 1.7.0

1 of the 1 container images this version deploys carry CVE-2026-39820.

Container imageDigestPackageFixed in
grafana/grafana:7.3.46d42886b3ebe
stdlib@go1.15.5
1.25.10

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3,376
podinfoflagger6.1.41 of 1See more

podinfo flagger 6.1.4

1 of the 1 container images this version deploys carry CVE-2026-39820.

Container imageDigestPackageFixed in
ghcr.io/stefanprodan/podinfo:6.1.3f25ebb9c6788
stdlib@go1.17.9
1.25.10

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2,829
apm-hubflanksourceVerified publisher0.0.472 of 2See more

apm-hub flanksource 0.0.47

2 of the 2 container images this version deploys carry CVE-2026-39820.

Container imageDigestPackageFixed in
flanksource/apm-hub:v0.0.471dacc3195bf9
stdlib@go1.20.7
1.25.10
library/postgres:14816cf7d06ec3
stdlib@go1.24.6
1.25.10

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6,177
batchrunnerflanksourceVerified publisher1.0.441 of 1See more

batchrunner flanksource 1.0.44

1 of the 1 container images this version deploys carry CVE-2026-39820.

Container imageDigestPackageFixed in
flanksource/batch-runner:v1.0.44689687a7cf95
stdlib@go1.25.5
1.25.10

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5,952
canary-checkerflanksourceVerified publisher1.2.01 of 2See more

canary-checker flanksource 1.2.0

1 of the 2 container images this version deploys carry CVE-2026-39820.

Container imageDigestPackageFixed in
flanksource/canary-checker-ui:v1.4.281764c84e550db
stdlib@go1.20.7
1.25.10

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4,932
facetflanksourceVerified publisher0.1.731 of 1See more

facet flanksource 0.1.73

1 of the 1 container images this version deploys carry CVE-2026-39820.

Container imageDigestPackageFixed in
ghcr.io/flanksource/facet:0.1.73a0323f4283e5
stdlib@go1.23.12
1.25.10

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23,496
flanksource-uiflanksourceVerified publisher1.4.3201 of 1See more

flanksource-ui flanksource 1.4.320

1 of the 1 container images this version deploys carry CVE-2026-39820.

Container imageDigestPackageFixed in
flanksource/incident-manager-ui:v1.4.320d952c2a774a2
stdlib@go1.23.5
1.25.10

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2,952
mission-controlflanksourceVerified publisher0.1.3383 of 8See more

mission-control flanksource 0.1.338

3 of the 8 container images this version deploys carry CVE-2026-39820.

Container imageDigestPackageFixed in
ghcr.io/flanksource/postgres:17.6-497383cebcf66281fc1
stdlib@go1.25.4
1.25.10
public.ecr.aws/flanksource/incident-manager-ui:v1.4.317fea799d4fb2f
stdlib@go1.23.5
1.25.10
public.ecr.aws/k4y9r6y5/kratos:v25.4.0e8014c6c58b6
stdlib@go1.25.2
1.25.10

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9,766
mission-control-tenantflanksourceVerified publisher1.0.923 of 3See more

mission-control-tenant flanksource 1.0.92

3 of the 3 container images this version deploys carry CVE-2026-39820.

Container imageDigestPackageFixed in
flanksource/vcluster-sync-host-secrets:v0.1.6bd3294c20a60
stdlib@go1.17.13
1.25.10
rancher/k3s:v1.28.2-k3s18c2599ecfca8
stdlib@go1.20.8
1.25.10
ghcr.io/loft-sh/vcluster:0.16.484f70425f4dd
stdlib@go1.20.8
1.25.10

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5,756
flask-contactsflask-contacts-generic1.0.11 of 3See more

flask-contacts flask-contacts-generic 1.0.1

1 of the 3 container images this version deploys carry CVE-2026-39820.

Container imageDigestPackageFixed in
library/mysql:8.07dcddc01f13b
stdlib@go1.24.6
1.25.10

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5,894
flask-appflask-mysqlVerified publisher1.0.11 of 2See more

flask-app flask-mysql 1.0.1

1 of the 2 container images this version deploys carry CVE-2026-39820.

Container imageDigestPackageFixed in
library/mysql:5.74bc6bc963e6d
stdlib@go1.18.2
1.25.10

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4,316
floating-serverfloating-server1.6.31 of 2See more

floating-server floating-server 1.6.3

1 of the 2 container images this version deploys carry CVE-2026-39820.

Container imageDigestPackageFixed in
censedata/floating-server:v1.6.3ebfffb9dd4c0
stdlib@go1.24.3
1.25.10

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1,710
floriapp-mongodbfloriapp1.0.01 of 1See more

floriapp-mongodb floriapp 1.0.0

1 of the 1 container images this version deploys carry CVE-2026-39820.

Container imageDigestPackageFixed in
library/mongo:4.4.66efa05203990
stdlib@go1.16.3
1.25.10

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8,232
fluent-operatorfluent-operatorVerified publisher0.1.01 of 2See more

fluent-operator fluent-operator 0.1.0

1 of the 2 container images this version deploys carry CVE-2026-39820.

Container imageDigestPackageFixed in
kubesphere/fluent-operator:v1.0.2702df77228c6
stdlib@go1.16.6
1.25.10

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2,628
uptime-kumafluent-operatorVerified publisher0.1.01 of 1See more

uptime-kuma fluent-operator 0.1.0

1 of the 1 container images this version deploys carry CVE-2026-39820.

Container imageDigestPackageFixed in
louislam/uptime-kuma:170233f4acb51
stdlib@go1.20.5
1.25.10

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3,806
fluxcd-helm-upgraderfluxcd-helm-upgraderVerified publisher0.7.71 of 1See more

fluxcd-helm-upgrader fluxcd-helm-upgrader 0.7.7

1 of the 1 container images this version deploys carry CVE-2026-39820.

Container imageDigestPackageFixed in
kenchrcum/fluxcd-helm-upgrader:0.7.7c326e28a8f5f
stdlib@go1.25.9
1.25.10

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2,627
fluxer-helmfluxer-helm0.3.02 of 18See more

fluxer-helm fluxer-helm 0.3.0

2 of the 18 container images this version deploys carry CVE-2026-39820.

Container imageDigestPackageFixed in
library/postgres:16-alpine721873c34ceb
stdlib@go1.24.6
1.25.10
ghcr.io/fluxerapp/fluxer-static:2026.812.125337cfe98ae544df
stdlib@go1.25.0
1.25.10

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30,173
flyte-depsflyte1.16.81 of 3See more

flyte-deps flyte 1.16.8

1 of the 3 container images this version deploys carry CVE-2026-39820.

Container imageDigestPackageFixed in
kubernetesui/dashboard:v2.2.0148991563e37
stdlib@go1.15.1
1.25.10

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2,241
flyte-devboxflyte0.1.07 of 14See more

flyte-devbox flyte 0.1.0

7 of the 14 container images this version deploys carry CVE-2026-39820.

Container imageDigestPackageFixed in
gcr.io/knative-releases/knative.dev/net-istio/cmd/controllerdigest-pinned0d5f740b4224
stdlib@go1.24.6
1.25.10
gcr.io/knative-releases/knative.dev/net-istio/cmd/webhookdigest-pinned697668be7893
stdlib@go1.24.6
1.25.10
gcr.io/knative-releases/knative.dev/serving/cmd/activatordigest-pinned031408ec516f
stdlib@go1.24.3
1.25.10
gcr.io/knative-releases/knative.dev/serving/cmd/autoscalerdigest-pinned3502bb5aa60f
stdlib@go1.24.3
1.25.10
gcr.io/knative-releases/knative.dev/serving/cmd/autoscaler-hpadigest-pinned7405faeb7636
stdlib@go1.24.3
1.25.10
gcr.io/knative-releases/knative.dev/serving/cmd/controllerdigest-pinned5b93308a392c
stdlib@go1.24.3
1.25.10
gcr.io/knative-releases/knative.dev/serving/cmd/webhookdigest-pinned50831d9aaa69
stdlib@go1.24.3
1.25.10

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8,866
gobackupfmjstudios0.2.21 of 1See more

gobackup fmjstudios 0.2.2

1 of the 1 container images this version deploys carry CVE-2026-39820.

Container imageDigestPackageFixed in
huacnlee/gobackup:v2.11.2d9c693e99576
stdlib@go1.20.3
1.25.10

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2,946
gotenbergfmjstudios0.2.21 of 1See more

gotenberg fmjstudios 0.2.2

1 of the 1 container images this version deploys carry CVE-2026-39820.

Container imageDigestPackageFixed in
gotenberg/gotenberg:8.7.0437b9cd3c351
stdlib@go1.22.4
1.25.10

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10,171
ntfyfmjstudios0.2.21 of 1See more

ntfy fmjstudios 0.2.2

1 of the 1 container images this version deploys carry CVE-2026-39820.

Container imageDigestPackageFixed in
binwiederhier/ntfy:v2.11.04a7d0f0adc6d
stdlib@go1.22.2
1.25.10

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1,285
popeyefmjstudios0.1.21 of 1See more

popeye fmjstudios 0.1.2

1 of the 1 container images this version deploys carry CVE-2026-39820.

Container imageDigestPackageFixed in
derailed/popeye:v0.21.363b2d2a8f674
stdlib@go1.21.8
1.25.10

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1,204
uptime-kumafmjstudios0.2.21 of 1See more

uptime-kuma fmjstudios 0.2.2

1 of the 1 container images this version deploys carry CVE-2026-39820.

Container imageDigestPackageFixed in
louislam/uptime-kuma:1.23.1396510915e6be
stdlib@go1.19.6
1.25.10

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4,521

Container images carrying it

4,739 by charts deploying them

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

No deployed image carries CVE-2026-39820.

syft 1.42.1 · advisories as of 1 Oct 2026

Corrections: contact@stackradar.io

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