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
0.008
54th percentile
CISA KEV
Not listed
no confirmed exploitation
Charts affected
4,079
of 17,828 indexed, latest versions
Container images
4,668
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 4,079 of 17,828 indexed charts deploy, on 4,668 images.

Affected packageAffected versionsFixed inImages
golang-1.19deb1.19.8-2no fix listed1
stdlibgolanggo1.13, go1.13.1, go1.13.3, go1.13.4+182 more1.25.104,668
OSV records
DEBIAN-CVE-2026-39820GO-2026-4986
Also known as
BIT-golang-2026-39820

Charts affected

4,079 by stars
ChartLatestAffected imagesRadar Score
n8njanip81-helm-chartsVerified publisher0.1.41 of 1See more

n8n janip81-helm-charts 0.1.4

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

Container imageDigestPackageFixed in
n8nio/n8n:1.86.08b39ed5a2de9
stdlib@go1.24.0
1.25.10

Open the chart page →

6,003
unifi-network-applicationjanip81-helm-chartsVerified publisher0.2.91 of 3See more

unifi-network-application janip81-helm-charts 0.2.9

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

Container imageDigestPackageFixed in
library/mongo:7.09854f7139445
stdlib@go1.24.6
1.25.10

Open the chart page →

2,029
janus-shieldjanus-shield1.0.01 of 2See more

janus-shield janus-shield 1.0.0

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

Container imageDigestPackageFixed in
quay.io/cilium/tetragon:v1.1.096fac2482898
stdlib@go1.22.2
1.25.10

Open the chart page →

2,440
javascriptweeklyjavascriptweekly2.1.01 of 1See more

javascriptweekly javascriptweekly 2.1.0

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

Container imageDigestPackageFixed in
zufardhiyaulhaq/javascriptweekly:v2.1.086424bd0b2a4
stdlib@go1.17.13
1.25.10

Open the chart page →

1,238
sql-exporterjdstoneVerified publisher0.2.11 of 1See more

sql-exporter jdstone 0.2.1

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

Container imageDigestPackageFixed in
burningalchemist/sql_exporter:0.16.0b8e4757c7def
stdlib@go1.23.2
1.25.10

Open the chart page →

886
newtjeffrescVerified publisher0.2.11 of 1See more

newt jeffresc 0.2.1

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

Container imageDigestPackageFixed in
fosrl/newt:1.10.4ccd2b0e9a049
stdlib@go1.25.8
1.25.10

Open the chart page →

1,113
jenkinsjenkins-chartVerified publisher0.1.01 of 1See more

jenkins jenkins-chart 0.1.0

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

Open the chart page →

2,545
athens-proxyjenkins-x0.2.21 of 2See more

athens-proxy jenkins-x 0.2.2

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

Container imageDigestPackageFixed in
jaegertracing/all-in-one:latestab6f1a1f0fb4
stdlib@go1.25.4
1.25.10

Open the chart page →

1,353
jx-app-athensjenkins-x0.0.181 of 1See more

jx-app-athens jenkins-x 0.0.18

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

Container imageDigestPackageFixed in
gomods/athens:v0.8.1d714c7ff0231
stdlib@go1.13.4
1.25.10

Open the chart page →

4,233
jx-app-datadogjenkins-x0.0.101 of 2See more

jx-app-datadog jenkins-x 0.0.10

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

Container imageDigestPackageFixed in
datadog/agent:6aad9994de6a7
stdlib@go1.21.11
1.25.10

Open the chart page →

4,129
jx-app-flaggerjenkins-x0.0.52 of 2See more

jx-app-flagger jenkins-x 0.0.5

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

Container imageDigestPackageFixed in
grafana/grafana:6.5.1befcd84da2c1
stdlib@go1.13.1
1.25.10
weaveworks/flagger:1.0.0-rc.5174307de1b36
stdlib@go1.14.2
1.25.10

Open the chart page →

6,037
jx-app-jenkinsjenkins-x0.0.151 of 2See more

jx-app-jenkins jenkins-x 0.0.15

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

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

Open the chart page →

2,545
knative-servingjenkins-x0.19.124 of 4See more

knative-serving jenkins-x 0.19.12

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

Container imageDigestPackageFixed in
gcr.io/knative-releases/knative.dev/serving/cmd/activatordigest-pinned1e3db4f2eeed
stdlib@go1.14.10
1.25.10
gcr.io/knative-releases/knative.dev/serving/cmd/autoscalerdigest-pinneddb6ceff2aab4
stdlib@go1.14.10
1.25.10
gcr.io/knative-releases/knative.dev/serving/cmd/controllerdigest-pinnedb2cd45b8a8a4
stdlib@go1.14.10
1.25.10
gcr.io/knative-releases/knative.dev/serving/cmd/webhookdigest-pinnedd27b4495ccc3
stdlib@go1.14.10
1.25.10

Open the chart page →

9,729
jetspotterjetspotter1.48.11 of 1See more

jetspotter jetspotter 1.48.1

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

Container imageDigestPackageFixed in
ghcr.io/vvanouytsel/jetspotter:1.48.1ec0e17a94f61
stdlib@go1.23.12
1.25.10

Open the chart page →

991
ingress-nginxjfrog4.5.22 of 2See more

ingress-nginx jfrog 4.5.2

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

Container imageDigestPackageFixed in
registry.k8s.io/ingress-nginx/controller:v1.6.415be4666c530
stdlib@go1.19.4
1.25.10
registry.k8s.io/ingress-nginx/kube-webhook-certgen:v20220916-gd32f8c34339c5b2e3310d
stdlib@go1.19.1
1.25.10

Open the chart page →

3,800
vaultjfrog0.25.02 of 2See more

vault jfrog 0.25.0

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

Container imageDigestPackageFixed in
hashicorp/vault:1.14.0b2177a8bfe85
stdlib@go1.20.5
1.25.10
hashicorp/vault-k8s:1.2.14500e988b7ce
stdlib@go1.20.3
1.25.10

Open the chart page →

3,981
alpine-torjfwenischVerified publisher1.1.01 of 1See more

alpine-tor jfwenisch 1.1.0

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

Container imageDigestPackageFixed in
jfwenisch/alpine-tor:latest9e6c229f953c
stdlib@go1.14.6
1.25.10

Open the chart page →

4,462
kafka-offset-lag-for-prometheusjhidalgo3-githubVerified publisher2.3.01 of 1See more

kafka-offset-lag-for-prometheus jhidalgo3-github 2.3.0

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

Container imageDigestPackageFixed in
jhidalgo3/kafka-offset-lag-for-prometheus:latest0390e155c46d
stdlib@go1.17.13
1.25.10

Open the chart page →

1,472
missing-container-metricsjimdo-missing-container-metrics0.5.01 of 1See more

missing-container-metrics jimdo-missing-container-metrics 0.5.0

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

Container imageDigestPackageFixed in
dmilhdef/missing-container-metrics:v0.21.0fada1a6e7638
stdlib@go1.16.2
1.25.10

Open the chart page →

2,418
job-manager-syncerjob-manager-syncer1.27.01 of 1See more

job-manager-syncer job-manager-syncer 1.27.0

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

Container imageDigestPackageFixed in
public.ecr.aws/cloudnatix/llmariner/job-manager-syncer:1.27.086957bbeeff5
stdlib@go1.23.12
1.25.10

Open the chart page →

462
haven-complinacy-dashboardjolle-devVerified publisher1.0.01 of 2See more

haven-complinacy-dashboard jolle-dev 1.0.0

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

Container imageDigestPackageFixed in
j0113/haven-compliancy-dashboard:1.3696cb8ca9f4e
stdlib@go1.17.2
1.25.10

Open the chart page →

3,843
cloudnative-pgjouveVerified publisher0.27.01 of 1See more

cloudnative-pg jouve 0.27.0

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

Container imageDigestPackageFixed in
ghcr.io/cloudnative-pg/cloudnative-pg:1.28.034198e85b6e6
stdlib@go1.25.5
1.25.10

Open the chart page →

654
corednsjouveVerified publisher1.45.01 of 1See more

coredns jouve 1.45.0

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

Container imageDigestPackageFixed in
coredns/coredns:1.13.19b9128672209
stdlib@go1.25.2
1.25.10

Open the chart page →

923
distributionjouveVerified publisher0.2.31 of 1See more

distribution jouve 0.2.3

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

Container imageDigestPackageFixed in
distribution/distribution:3.1.1bca24727f400
stdlib@go1.25.9
1.25.10

Open the chart page →

861
image-storage-servicejtektVerified publisher0.4.31 of 4See more

image-storage-service jtekt 0.4.3

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

Container imageDigestPackageFixed in
bitnamilegacy/mongodb:6.0.10-debian-11-r842319decb591
stdlib@go1.19.12
1.25.10

Open the chart page →

22,853
time-series-storagejtektVerified publisher0.1.101 of 2See more

time-series-storage jtekt 0.1.10

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

Container imageDigestPackageFixed in
bitnamilegacy/influxdb:2.6.1-debian-11-r18d17df1f9d745
stdlib@go1.19.6
1.25.10

Open the chart page →

16,692
firstchartjuanjmerono0.2.01 of 1See more

firstchart juanjmerono 0.2.0

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

Container imageDigestPackageFixed in
jmalloc/echo-server:0.3.1e4eaee2c7998
stdlib@go1.17
1.25.10

Open the chart page →

1,444
alertmanager-irc-relayjuppi880.0.11 of 1See more

alertmanager-irc-relay juppi88 0.0.1

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

Container imageDigestPackageFixed in
maldridge/alertmanager-irc-relay:v0.4.1391de2b76128
stdlib@go1.16.4
1.25.10

Open the chart page →

1,616
nginx-gateway-fabricjupyter-jscVerified publisher2.4.11 of 1See more

nginx-gateway-fabric jupyter-jsc 2.4.1

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

Container imageDigestPackageFixed in
ghcr.io/nginx/nginx-gateway-fabric:2.4.180f3a0a51af5
stdlib@go1.25.7
1.25.10

Open the chart page →

373
k10appk10app0.2.11 of 11See more

k10app k10app 0.2.1

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

Container imageDigestPackageFixed in
ghcr.io/k10app/businit:latest94c9a3e799c2
stdlib@go1.19.3
1.25.10

Open the chart page →

10,168
multusk3s4.0.201+upv4.0.2-build20240208012 of 2See more

multus k3s 4.0.201+upv4.0.2-build2024020801

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

Container imageDigestPackageFixed in
rancher/hardened-cni-plugins:v1.4.0-build202401222581c5490bab
stdlib@go1.20.7
1.25.10
rancher/hardened-multus-cni:v4.0.2-build202402087d0f41b72eb7
stdlib@go1.20.7
1.25.10

Open the chart page →

1,623
snapshot-controllerk3s1.6.1+up1.6.01 of 1See more

snapshot-controller k3s 1.6.1+up1.6.0

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

Container imageDigestPackageFixed in
rancher/mirrored-sig-storage-snapshot-controller:v6.1.0934863015367
stdlib@go1.18
1.25.10

Open the chart page →

1,373
snapshot-validation-webhookk3s1.6.1+up1.6.01 of 1See more

snapshot-validation-webhook k3s 1.6.1+up1.6.0

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

Container imageDigestPackageFixed in
rancher/mirrored-sig-storage-snapshot-validation-webhook:v6.1.0deac027820ae
stdlib@go1.18
1.25.10

Open the chart page →

1,373
traefikk3s20.3.1+up20.3.01 of 1See more

traefik k3s 20.3.1+up20.3.0

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

Container imageDigestPackageFixed in
rancher/mirrored-library-traefik:2.9.40842af6afcdf
stdlib@go1.19.2
1.25.10

Open the chart page →

3,325
k8quk8qu1.4.01 of 1See more

k8qu k8qu 1.4.0

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

Container imageDigestPackageFixed in
ghcr.io/gijsvandulmen/k8qu:1.4e897b18db13d
stdlib@go1.22.6
1.25.10

Open the chart page →

569
deltabadgerk8s-chartsVerified publisher2.0.01 of 1See more

deltabadger k8s-charts 2.0.0

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

Container imageDigestPackageFixed in
ghcr.io/deltabadger/deltabadger:2.23.3bffe3c22fabc
stdlib@go1.24.4
1.25.10

Open the chart page →

5,746
valheim-serverk8s-chartsVerified publisher1.3.01 of 1See more

valheim-server k8s-charts 1.3.0

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

Container imageDigestPackageFixed in
mbround18/valheim:3.1.070bd4da591cd
stdlib@go1.18.1
1.25.10

Open the chart page →

60,300
deploydefenderk8s-custom-controllerVerified publisher0.1.31 of 1See more

deploydefender k8s-custom-controller 0.1.3

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

Container imageDigestPackageFixed in
ghcr.io/manzil-infinity180/deploydefender:ea3ab0bb646cdbeddd1aca483ecf650f9ac0d0847fbc6855c8b3
stdlib@go1.22.7
1.25.10

Open the chart page →

1,906
k8s-dev-podk8s-dev-pod0.3.11 of 1See more

k8s-dev-pod k8s-dev-pod 0.3.1

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

Container imageDigestPackageFixed in
ghcr.io/bryopsida/k8s-dev-pod:main82d0b161161d
stdlib@go1.24.3
1.25.10

Open the chart page →

66,895
bitmagnetk8s-home-lab-repo1.0.21 of 1See more

bitmagnet k8s-home-lab-repo 1.0.2

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

Container imageDigestPackageFixed in
ghcr.io/bitmagnet-io/bitmagnet:v0.10b6373349a301
stdlib@go1.23.6
1.25.10

Open the chart page →

1,169
blockyk8s-home-lab-repo11.2.11 of 1See more

blocky k8s-home-lab-repo 11.2.1

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

Container imageDigestPackageFixed in
ghcr.io/0xerr0r/blocky:v0.29.0a6d99f323d30
stdlib@go1.26.0
1.25.10

Open the chart page →

580
ghostk8s-home-lab-repo4.1.01 of 1See more

ghost k8s-home-lab-repo 4.1.0

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

Container imageDigestPackageFixed in
library/ghost:6.41.129773d6be407
stdlib@go1.24.6
1.25.10

Open the chart page →

3,156
influxdb-exporterk8s-home-lab-repo1.1.31 of 1See more

influxdb-exporter k8s-home-lab-repo 1.1.3

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

Container imageDigestPackageFixed in
prom/influxdb-exporter:v0.11.427e33e18634a
stdlib@go1.19.9
1.25.10

Open the chart page →

624
maddyk8s-home-lab-repo4.2.11 of 1See more

maddy k8s-home-lab-repo 4.2.1

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

Container imageDigestPackageFixed in
foxcpp/maddy:0.8.2eeb5813fc4d1
stdlib@go1.23.12
1.25.10

Open the chart page →

1,205
paperlessk8s-home-lab-repo11.0.11 of 1See more

paperless k8s-home-lab-repo 11.0.1

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

Container imageDigestPackageFixed in
ghcr.io/paperless-ngx/paperless-ngx:2.20.14b89f83345532
stdlib@go1.24.4
1.25.10

Open the chart page →

9,341
photoprismk8s-home-lab-repo10.0.11 of 1See more

photoprism k8s-home-lab-repo 10.0.1

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

Container imageDigestPackageFixed in
photoprism/photoprism:231128-ce284de9cc4f9c
stdlib@go1.21.4
1.25.10

Open the chart page →

1,141
zurgk8s-home-lab-repo1.2.11 of 1See more

zurg k8s-home-lab-repo 1.2.1

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

Container imageDigestPackageFixed in
ghcr.io/debridmediamanager/zurg-testing:v0.9.3-final5c47ef99443a
stdlib@go1.22.5
1.25.10

Open the chart page →

1,734
k8s-jacoco-operatork8s-jacoco-operator0.4.01 of 4See more

k8s-jacoco-operator k8s-jacoco-operator 0.4.0

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

Container imageDigestPackageFixed in
ghcr.io/curium-rocks/docker-kubectl:maind04c003d7593
stdlib@go1.22.5
1.25.10

Open the chart page →

2,447
k8s-mutating-webhookk8s-mutating-webhook0.3.01 of 2See more

k8s-mutating-webhook k8s-mutating-webhook 0.3.0

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

Container imageDigestPackageFixed in
ghcr.io/curium-rocks/docker-kubectl:maind04c003d7593
stdlib@go1.22.5
1.25.10

Open the chart page →

2,013
k8s-ondemand-proxyk8s-ondemand-proxy0.0.61 of 1See more

k8s-ondemand-proxy k8s-ondemand-proxy 0.0.6

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

Container imageDigestPackageFixed in
ghcr.io/nefelim4ag/k8s-ondemand-proxy:0.0.2078b25d48cf7
stdlib@go1.21.1
1.25.10

Open the chart page →

815

Container images carrying it

4,668 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/csi-snapshotter:v6.1.0291334908ddf
stdlib@go1.18
1.25.10
1
registry.k8s.io/sig-storage/csi-snapshotter:v8.0.25f051159c95f
stdlib@go1.22.5
1.25.10
1
registry.k8s.io/sig-storage/csi-snapshotter:v8.2.15f4bb469fec5
stdlib@go1.23.6
1.25.10
1
registry.k8s.io/sig-storage/csi-snapshotter:v4.2.1818f35653f2e
stdlib@go1.16.2
1.25.10
1
registry.k8s.io/sig-storage/csi-snapshotter:v5.0.189e900a160a9
stdlib@go1.17.3
1.25.10
1
registry.k8s.io/sig-storage/hostpathplugin:v1.9.092257881c1d6
stdlib@go1.18
1.25.10
1
registry.k8s.io/sig-storage/livenessprobe:v2.9.02b10b24dafdc
stdlib@go1.19
1.25.10
1
registry.k8s.io/sig-storage/livenessprobe:v2.11.082adbebdf5d5
stdlib@go1.20.5
1.25.10
1
registry.k8s.io/sig-storage/local-volume-provisioner:v2.8.03e2bf2eaef9f
stdlib@go1.23.4
1.25.10
1
registry.k8s.io/sig-storage/local-volume-provisioner:v2.9.0f9d65db8bda2
stdlib@go1.25.5
1.25.10
1
registry.k8s.io/sig-storage/nfsplugin:v4.11.0ce5b5ccd5eb0
stdlib@go1.23.6
1.25.10
1
registry.k8s.io/sig-storage/nfs-subdir-external-provisioner:v4.0.03ce0fdba4d8e
stdlib@go1.15
1.25.10
1
registry.k8s.io/sig-storage/objectstorage-sidecar:v0.2.2c7166a73a303
stdlib@go1.24.11
1.25.10
1
registry.k8s.io/sig-storage/snapshot-controller:v8.2.1472fa35a89da
stdlib@go1.23.6
1.25.10
1
registry.k8s.io/sig-storage/snapshot-controller:v4.2.195587f8777d7
stdlib@go1.16.2
1.25.10
1
registry.k8s.io/sig-storage/snapshot-controller:v6.2.198bab4eaf23c
stdlib@go1.19
1.25.10
1
registry.k8s.io/sig-storage/snapshot-controller:v6.3.1ce6ca3c0e30b
stdlib@go1.20.5
1.25.10
1
registry.k8s.io/sig-storage/volume-data-source-validator:v1.0.0d35884236461
stdlib@go1.17.3
1.25.10
1

syft 1.42.1 · advisories as of 22 Sept 2026

Corrections: contact@stackradar.io

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