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
4,209
of 17,966 indexed, latest versions
Container images
4,735
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 4,209 of 17,966 indexed charts deploy, on 4,735 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 more1.25.104,735
OSV records
DEBIAN-CVE-2026-39820GO-2026-4986
Also known as
BIT-golang-2026-39820

Charts affected

4,209 by stars
ChartLatestAffected imagesRadar Score
service-binding-operatorservice-binding-operator-helm-chart1.4.11 of 1See more

service-binding-operator service-binding-operator-helm-chart 1.4.1

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

Container imageDigestPackageFixed in
quay.io/redhat-developer/servicebinding-operatordigest-pinned16286ac84ddd
stdlib@go1.20.6
1.25.10

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801
serviceexampleserviceexample0.1.03 of 5See more

serviceexample serviceexample 0.1.0

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

Container imageDigestPackageFixed in
library/nats:2.9.20-alpined6c6ae7df4a0
stdlib@go1.19.11
1.25.10
natsio/nats-box:0.13.559cf2e949181
stdlib@go1.19.5
1.25.10
natsio/nats-server-config-reloader:0.11.0c3a755eab2cc
stdlib@go1.20.5
1.25.10

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5,475
service-exampleservice-example-10.1.05 of 7See more

service-example service-example-1 0.1.0

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

Container imageDigestPackageFixed in
library/mongo:latest5d7043a4ffe0
stdlib@go1.24.6
1.25.10
library/nats:2.9.11-alpineccbe811b8575
stdlib@go1.19.4
1.25.10
natsio/nats-box:0.13.3c507bd7e3831
stdlib@go1.19.4
1.25.10
natsio/nats-server-config-reloader:0.8.06bdaceb63aa5
stdlib@go1.19.4
1.25.10
natsio/prometheus-nats-exporter:0.10.1bce728062c4f
stdlib@go1.19.3
1.25.10

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8,515
serviceexampleserviceexample-chart0.3.01 of 4See more

serviceexample serviceexample-chart 0.3.0

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

Container imageDigestPackageFixed in
library/mongo:latest5d7043a4ffe0
stdlib@go1.24.6
1.25.10

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3,554
serviceexampleservice-example-helm-chart0.1.01 of 4See more

serviceexample service-example-helm-chart 0.1.0

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

Container imageDigestPackageFixed in
library/mongo:latest5d7043a4ffe0
stdlib@go1.24.6
1.25.10

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1,674
service-exampleservice-example-jt0.1.14 of 9See more

service-example service-example-jt 0.1.1

4 of the 9 container images this version deploys carry CVE-2026-39820.

Container imageDigestPackageFixed in
library/nats:2.12.2-alpine2d5fce3229ae
stdlib@go1.25.4
1.25.10
natsio/nats-box:0.19.28031d190c7ee
stdlib@go1.25.2
1.25.10
natsio/nats-server-config-reloader:0.20.147094fcae2f4
stdlib@go1.24.8
1.25.10
natsio/prometheus-nats-exporter:0.17.326c826662ac8
stdlib@go1.24.2
1.25.10

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7,608
ccx-monitoringseveralnines0.6.215 of 7See more

ccx-monitoring severalnines 0.6.21

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

Container imageDigestPackageFixed in
grafana/grafana:12.3.12175aaa91c96
stdlib@go1.25.5
1.25.10
victoriametrics/victoria-metrics:v1.120.0a1cb2f3dfd45
stdlib@go1.24.4
1.25.10
victoriametrics/vmalert:v1.96.0150cd08fde94
stdlib@go1.21.5
1.25.10
quay.io/prometheus/alertmanager:v0.26.0361db356b330
stdlib@go1.20.7
1.25.10
registry.k8s.io/kube-state-metrics/kube-state-metrics:v2.10.1af8220f53493
stdlib@go1.20.10
1.25.10

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7,887
apache-shardingsphere-operator-chartsshardingsphere0.3.01 of 2See more

apache-shardingsphere-operator-charts shardingsphere 0.3.0

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

Container imageDigestPackageFixed in
apache/shardingsphere-operator:0.3.0ffe68d6b99c0
stdlib@go1.19.10
1.25.10

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1,703
first-chartshashkist-test0.1.01 of 3See more

first-chart shashkist-test 0.1.0

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

Container imageDigestPackageFixed in
library/mysql:latestade067ae2fb1
stdlib@go1.24.6
1.25.10

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3,266
bffshortlink0.2.11 of 1See more

bff shortlink 0.2.1

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

Container imageDigestPackageFixed in
registry.gitlab.com/shortlink-org/shortlink/bff:latestf2194e526915
stdlib@go1.25.7
1.25.10

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1,736
linkshortlink0.7.31 of 1See more

link shortlink 0.7.3

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

Container imageDigestPackageFixed in
registry.gitlab.com/shortlink-org/shortlink/link:latest86d87291ffd4
stdlib@go1.25.7
1.25.10

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1,718
pagesshrutiujlan-pages1.0.01 of 3See more

pages shrutiujlan-pages 1.0.0

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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20,652
hedgedocsi-gitops0.12.31 of 2See more

hedgedoc si-gitops 0.12.3

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

Container imageDigestPackageFixed in
library/postgres:18.43a82e1f56c8f
stdlib@go1.24.6
1.25.10

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3,131
backendsignalen4.25.02 of 4See more

backend signalen 4.25.0

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

Container imageDigestPackageFixed in
bitnamilegacy/postgresql:14.4.0-debian-11-r237e7ebb082031
stdlib@go1.16.7
1.25.10
bitnamilegacy/rabbitmq:3.10.7-debian-11-r4cf93e2772250
stdlib@go1.16.7
1.25.10

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11,542
alertmanagersignoz0.5.21 of 1See more

alertmanager signoz 0.5.2

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

Container imageDigestPackageFixed in
signoz/alertmanager:0.5.07bc7de2e33c2
stdlib@go1.14
1.25.10

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2,178
postgresqlsignoz0.0.21 of 1See more

postgresql signoz 0.0.2

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

Container imageDigestPackageFixed in
library/postgres:15dfbbb0ad8cab
stdlib@go1.24.6
1.25.10

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1,390
zookeepersignoz0.0.11 of 1See more

zookeeper signoz 0.0.1

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

Container imageDigestPackageFixed in
signoz/zookeeper:3.7.1fcc4a3288154
stdlib@go1.21.2
1.25.10

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3,014
local-static-provisionersig-storage-local-static-provisioner2.9.01 of 1See more

local-static-provisioner sig-storage-local-static-provisioner 2.9.0

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

Container imageDigestPackageFixed in
registry.k8s.io/sig-storage/local-volume-provisioner:v2.9.0f9d65db8bda2
stdlib@go1.25.5
1.25.10

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1,343
ctlogsigstoreVerified publisher0.2.683 of 4See more

ctlog sigstore 0.2.68

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

Container imageDigestPackageFixed in
ghcr.io/sigstore/scaffolding/createctconfig:v0.7.313a061734c5be
stdlib@go1.25.0
1.25.10
ghcr.io/sigstore/scaffolding/createtree:v0.7.31e5232e8c9122
stdlib@go1.25.0
1.25.10
ghcr.io/sigstore/scaffolding/ct_server:v0.7.3166664ba563e7
stdlib@go1.25.0
1.25.10

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2,793
ctlog-tilessigstoreVerified publisher0.1.81 of 1See more

ctlog-tiles sigstore 0.1.8

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

Container imageDigestPackageFixed in
ghcr.io/transparency-dev/tesseract/posix:v0.1.2b044edd23888
stdlib@go1.25.8
1.25.10

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299
sigstore-probersigstoreVerified publisher0.3.11 of 1See more

sigstore-prober sigstore 0.3.1

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

Container imageDigestPackageFixed in
ghcr.io/sigstore/sigstore-probers/prober:v1.0.1d1e914e6d6b9
stdlib@go1.26.0
1.25.10

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448
trilliansigstoreVerified publisher0.3.214 of 5See more

trillian sigstore 0.3.21

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

Container imageDigestPackageFixed in
gcr.io/trillian-opensource-ci/db_serverdigest-pinned2a685a38dd01
stdlib@go1.18.2
1.25.10
ghcr.io/sigstore/scaffolding/createdbdigest-pinned3cee6c78973b
stdlib@go1.25.0
1.25.10
ghcr.io/sigstore/scaffolding/trillian_log_serverdigest-pinned5a878e4e4f03
stdlib@go1.26.0
1.25.10
ghcr.io/sigstore/scaffolding/trillian_log_signerdigest-pinned28c5ff40963f
stdlib@go1.26.0
1.25.10

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2,789
tsasigstoreVerified publisher2.1.31 of 1See more

tsa sigstore 2.1.3

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

Container imageDigestPackageFixed in
ghcr.io/sigstore/timestamp-server:v2.1.08637f0482ed1
stdlib@go1.25.1
1.25.10

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609
tufsigstoreVerified publisher0.1.321 of 1See more

tuf sigstore 0.1.32

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

Container imageDigestPackageFixed in
ghcr.io/sigstore/scaffolding/serverdigest-pinnedae8eb69c7b70
stdlib@go1.25.0
1.25.10

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773
counter-dhlsikademo0.3.01 of 3See more

counter-dhl sikademo 0.3.0

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

Container imageDigestPackageFixed in
ondrejsika/counter:latestd95eaeee2172
stdlib@go1.26.2
1.25.10

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4,952
test-hello-worldsikademo0.1.01 of 1See more

test-hello-world sikademo 0.1.0

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

Container imageDigestPackageFixed in
sikalabs/hello-world-server:latest5f49bf889a64
stdlib@go1.26.2
1.25.10

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1,368
hello-worldsikalabs0.17.01 of 1See more

hello-world sikalabs 0.17.0

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

Container imageDigestPackageFixed in
ghcr.io/sikalabs/hello-world-server:latestcf8538bf6489
stdlib@go1.26.2
1.25.10

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1,368
hello-world-examplesikalabs0.1.31 of 1See more

hello-world-example sikalabs 0.1.3

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

Container imageDigestPackageFixed in
sikalabs/hello-world-server:latest5f49bf889a64
stdlib@go1.26.2
1.25.10

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1,368
keycloak-configuratorsikalabs0.2.01 of 1See more

keycloak-configurator sikalabs 0.2.0

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

Container imageDigestPackageFixed in
hashicorp/terraform:1.44dcb45513699
stdlib@go1.19.6
1.25.10

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2,873
loggensikalabs0.1.01 of 1See more

loggen sikalabs 0.1.0

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

Container imageDigestPackageFixed in
sikalabs/slu:v0.72.07bd267f30247
stdlib@go1.21.4
1.25.10

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2,347
metrics-generatorsikalabs0.2.01 of 1See more

metrics-generator sikalabs 0.2.0

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

Container imageDigestPackageFixed in
sikalabs/slu:v0.34.0fdc0c6711add
stdlib@go1.17.6
1.25.10

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2,382
olmsikalabs0.3.01 of 2See more

olm sikalabs 0.3.0

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

Container imageDigestPackageFixed in
quay.io/operator-framework/olmdigest-pinned40d0363f4aa6
stdlib@go1.22.3
1.25.10

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1,167
signpostsikalabs0.5.01 of 1See more

signpost sikalabs 0.5.0

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

Container imageDigestPackageFixed in
sikalabs/signpost:v0.7.0c8b0e21d61b4
stdlib@go1.24.6
1.25.10

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319
bytesafe-cesimcube1.0.41 of 3See more

bytesafe-ce simcube 1.0.4

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

Container imageDigestPackageFixed in
bytesafe/bytesafe-ce:v1.0.4ee287384c005
stdlib@go1.20.5
1.25.10

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1,506
keydbsinextraVerified publisher0.31.21 of 1See more

keydb sinextra 0.31.2

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

Container imageDigestPackageFixed in
ghcr.io/sergelogvinov/keydb:6.3.376a19ddc3626
stdlib@go1.18.10
1.25.10

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2,173
mongosqldsinextraVerified publisher0.3.71 of 1See more

mongosqld sinextra 0.3.7

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

Container imageDigestPackageFixed in
ghcr.io/sergelogvinov/mongosqld:2.14.230b826375ed42
stdlib@go1.23.8
1.25.10

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2,767
mongosyncsinextraVerified publisher0.4.01 of 1See more

mongosync sinextra 0.4.0

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

Container imageDigestPackageFixed in
ghcr.io/sergelogvinov/mongosync:1.15.0fa99ed475f03
stdlib@go1.24.4
1.25.10

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3,004
pgbouncersinextraVerified publisher0.17.01 of 1See more

pgbouncer sinextra 0.17.0

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

Container imageDigestPackageFixed in
ghcr.io/sergelogvinov/pgbouncer:16.1518f1121ba0a4
stdlib@go1.24.6
1.25.10

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2,127
system-upgrade-controllersinextraVerified publisher0.6.11 of 1See more

system-upgrade-controller sinextra 0.6.1

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

Container imageDigestPackageFixed in
rancher/system-upgrade-controller:v0.19.234fa058fe453
stdlib@go1.25.8
1.25.10

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257
tailscalesinextraVerified publisher0.18.11 of 2See more

tailscale sinextra 0.18.1

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

Container imageDigestPackageFixed in
registry.k8s.io/coredns/coredns:v1.13.294caebb89dcf
stdlib@go1.25.5
1.25.10

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1,105
talos-backupsinextraVerified publisher0.1.21 of 1See more

talos-backup sinextra 0.1.2

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

Container imageDigestPackageFixed in
ghcr.io/siderolabs/talos-backup:v0.1.0-beta.203a71e140f1d
stdlib@go1.23.0
1.25.10

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905
teamcitysinextraVerified publisher1.0.21 of 3See more

teamcity sinextra 1.0.2

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

Container imageDigestPackageFixed in
library/docker:26.1-dinddd43b430341a
stdlib@go1.21.11
1.25.10

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2,480
mariadbsitepilot1.0.31 of 1See more

mariadb sitepilot 1.0.3

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

Container imageDigestPackageFixed in
library/mariadb:10.640153feb479c
stdlib@go1.24.6
1.25.10

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2,939
network-observerskupper-network-observerVerified publisher2.2.31See more

network-observer skupper-network-observer 2.2.3

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

Container imageDigestPackageFixed in
quay.io/prometheus/prometheus:v3.11.3c0b857aead0d
stdlib@go1.26.2
1.25.10

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—
skyhook-agentskyhookVerified publisher1.3.151 of 1See more

skyhook-agent skyhook 1.3.15

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

Container imageDigestPackageFixed in
ghcr.io/skyhook-io/skyhook-connector:v2.3.23deb8e4b1aaa
stdlib@go1.26.0
1.25.10

Open the chart page →

302
mimirskyloud-helm-chartsVerified publisher5.5.14 of 5See more

mimir skyloud-helm-charts 5.5.1

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

Container imageDigestPackageFixed in
grafana/mimir:r292-5f018727476e456c738
stdlib@go1.22.3
1.25.10
grafana/rollout-operator:v0.14.03409edfb45c7
stdlib@go1.22.1
1.25.10
quay.io/minio/mc:RELEASE.2023-09-29T16-41-22Za784ce6e3b1b
stdlib@go1.21.1
1.25.10
quay.io/minio/minio:RELEASE.2023-09-30T07-02-29Z6262bc9a2730
stdlib@go1.21.1
1.25.10

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11,030
tailscale-operatorskyloud-helm-chartsVerified publisher1.70.31 of 1See more

tailscale-operator skyloud-helm-charts 1.70.3

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

Container imageDigestPackageFixed in
tailscale/k8s-operator:v1.70.08edd06cf5bac
stdlib@go1.22.5
1.25.10

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1,043
skypilot-prometheus-serverskypilotVerified publisher0.11.13 of 3See more

skypilot-prometheus-server skypilot 0.11.1

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

Container imageDigestPackageFixed in
quay.io/prometheus-operator/prometheus-config-reloader:v0.83.078aec597d87a
stdlib@go1.24.3
1.25.10
quay.io/prometheus/prometheus:v3.4.19abc6cf6aea7
stdlib@go1.24.3
1.25.10
registry.k8s.io/kube-state-metrics/kube-state-metrics:v2.15.0db384bf43222
stdlib@go1.23.5
1.25.10

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2,346
pritunl-zerosky-sailVerified publisher0.3.31 of 1See more

pritunl-zero sky-sail 0.3.3

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

Container imageDigestPackageFixed in
pritunl/pritunl-zero:1.0.3648.460f2943e0d41b
stdlib@go1.25.4
1.25.10

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658
yopasssky-sailVerified publisher1.3.11 of 2See more

yopass sky-sail 1.3.1

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

Container imageDigestPackageFixed in
jhaals/yopass:12.5.0916a1cf45d36
stdlib@go1.25.5
1.25.10

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3,340

Container images carrying it

4,735 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 30 Sept 2026

Corrections: contact@stackradar.io

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