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
4,221
of 17,966 indexed, latest versions
Container images
4,754
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 4,221 of 17,966 indexed charts deploy, on 4,754 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 more1.25.104,754
OSV records
DEBIAN-CVE-2026-39820GO-2026-4986
Also known as
BIT-golang-2026-39820

Charts affected

4,221 by stars
ChartLatestAffected imagesRadar Score
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

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4,486
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

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658
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

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926
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

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883
api-key-managerjtektVerified publisher0.3.02 of 4See more

api-key-manager jtekt 0.3.0

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

Container imageDigestPackageFixed in
library/postgres:17f4c66b820c6f
stdlib@go1.24.6
1.25.10
public.ecr.aws/jtekt-corporation/api-key-manager-api:v0.1.175a48d987e0f
stdlib@go1.20.7
1.25.10

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6,708
image-storage-servicejtektVerified publisher0.5.11 of 4See more

image-storage-service jtekt 0.5.1

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

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24,098
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

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17,437
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

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1,449
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

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1,621
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

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380
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

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10,538
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

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1,637
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

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1,378
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

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1,378
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

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3,348
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

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574
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

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6,313
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

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65,303
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

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1,941
k8sdb-controllerk8sdb-controller0.1.21 of 1See more

k8sdb-controller k8sdb-controller 0.1.2

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

Container imageDigestPackageFixed in
ghcr.io/doodlescheduling/k8sdb-controller:v0.0.1a6c2251a6263
stdlib@go1.16.14
1.25.10

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1,961
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

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73,154
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

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1,175
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

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581
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

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3,672
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

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628
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

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1,313
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

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10,177
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

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1,143
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

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1,760
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

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2,609
k8skeycloak-controllerk8skeycloak-controller0.1.21 of 1See more

k8skeycloak-controller k8skeycloak-controller 0.1.2

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

Container imageDigestPackageFixed in
ghcr.io/doodlescheduling/k8skeycloak-controller:v0.0.19befc51b1ad6
stdlib@go1.15.15
1.25.10

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4,155
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

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2,163
k8soauth2-proxy-controllerk8soauth2-proxy-controller0.1.51 of 1See more

k8soauth2-proxy-controller k8soauth2-proxy-controller 0.1.5

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

Container imageDigestPackageFixed in
ghcr.io/doodlescheduling/k8soauth2-proxy-controller:v0.1.280d049c9da31
stdlib@go1.17.11
1.25.10

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1,475
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

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821
librephotosk8sonlabVerified publisher1.1.63 of 7See more

librephotos k8sonlab 1.1.6

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

Container imageDigestPackageFixed in
alpine/k8s:1.22.600ac10bcb759
stdlib@go1.17.6
1.25.10
bitnamilegacy/redis:latest5927ff3702df
stdlib@go1.24.5
1.25.10
reallibrephotos/librephotos-frontend:1.0.358cdf5e93471
stdlib@go1.24.13
1.25.10

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15,790
thanosk8sonlabVerified publisher1.1.71 of 1See more

thanos k8sonlab 1.1.7

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

Container imageDigestPackageFixed in
thanosio/thanos:v0.41.0cf3e9b292e43
stdlib@go1.25.7
1.25.10

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599
unifik8sonlabVerified publisher0.3.71 of 1See more

unifi k8sonlab 0.3.7

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

Container imageDigestPackageFixed in
jacobalberty/unifi:v10.0.162896c0ab82d33
stdlib@go1.24.6
1.25.10

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7,929
k8s-pausek8s-pause0.1.41 of 1See more

k8s-pause k8s-pause 0.1.4

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

Container imageDigestPackageFixed in
ghcr.io/doodlescheduling/k8s-pause:v0.1.16b3215e37738
stdlib@go1.17.8
1.25.10

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1,842
k8sprom-patch-controllerk8sprom-patch-controller0.1.41 of 1See more

k8sprom-patch-controller k8sprom-patch-controller 0.1.4

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

Container imageDigestPackageFixed in
ghcr.io/doodlescheduling/k8sprom-patch-controller:v0.1.243b92c9cf029
stdlib@go1.17.8
1.25.10

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1,842
k8s-s3-bucket-operatork8s-s3-bucket-operator0.2.21 of 1See more

k8s-s3-bucket-operator k8s-s3-bucket-operator 0.2.2

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

Container imageDigestPackageFixed in
ghcr.io/devangradadiya/k8s-s3-bucket-operator:0.2.258288de9f9fa
stdlib@go1.25.8
1.25.10

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534
k8s-ssh-bastionk8s-ssh-bastion0.5.41 of 1See more

k8s-ssh-bastion k8s-ssh-bastion 0.5.4

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

Container imageDigestPackageFixed in
ghcr.io/nefelim4ag/k8s-ssh-bastion:0.5.04d337e14c80b
stdlib@go1.21.11
1.25.10

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3,549
k8stcpmap-controllerk8stcpmap-controller0.1.21 of 1See more

k8stcpmap-controller k8stcpmap-controller 0.1.2

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

Container imageDigestPackageFixed in
ghcr.io/doodlescheduling/k8stcpmap-controller:v0.0.1ff005643dc97
stdlib@go1.16.14
1.25.10

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1,520
k8s-validating-webhookk8s-validating-webhook0.4.01 of 2See more

k8s-validating-webhook k8s-validating-webhook 0.4.0

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

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2,163
kube-admission-controller-starterk8s-validating-webhook0.2.01 of 2See more

kube-admission-controller-starter k8s-validating-webhook 0.2.0

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

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2,321
k8svault-controllerk8svault-controller0.1.21 of 1See more

k8svault-controller k8svault-controller 0.1.2

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

Container imageDigestPackageFixed in
ghcr.io/doodlescheduling/k8svault-controller:v0.2.0627e5e211766
stdlib@go1.16.15
1.25.10

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1,881
kagentkagent0.10.23 of 6See more

kagent kagent 0.10.2

3 of the 6 container images this version deploys carry CVE-2026-39820.

Container imageDigestPackageFixed in
library/postgres:18.6-alpine3.23885cf05d376c
stdlib@go1.24.6
1.25.10
ghcr.io/kagent-dev/kagent/tools:0.2.150b431281d3e
stdlib@go1.25.8
1.25.10
ghcr.io/kagent-dev/kmcp/controller:0.3.086ab878da25a
stdlib@go1.24.13
1.25.10

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3,556
authentikkagiso-me0.1.11 of 1See more

authentik kagiso-me 0.1.1

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

Container imageDigestPackageFixed in
ghcr.io/goauthentik/server:2026.2.146a71d75dfd3
stdlib@go1.25.5
1.25.10

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5,138
postgresqlkagiso-me0.4.01 of 1See more

postgresql kagiso-me 0.4.0

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

Container imageDigestPackageFixed in
library/postgres:17.4-alpine7062a2109c4b
stdlib@go1.18.2
1.25.10

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1,747
rediskagiso-me0.1.61 of 1See more

redis kagiso-me 0.1.6

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

Container imageDigestPackageFixed in
library/redis:7.4.2-alpine02419de7eddf
stdlib@go1.18.2
1.25.10

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1,543
kom-operatorkaisoVerified publisher1.3.01 of 2See more

kom-operator kaiso 1.3.0

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

Container imageDigestPackageFixed in
kaiso/kom-operator:v2.2.0e0e22b928bdd
stdlib@go1.21.5
1.25.10

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716

Container images carrying it

4,754 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/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 1 Oct 2026

Corrections: contact@stackradar.io

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