CVE-2026-56858

Medium

Advisory

Published 13 Aug 2026In the index since 5 Sept 2026

Severity: Medium; worst across findings
CVSS: 6.1; base score, highest
EPSS: 0.003; 24th percentile
CISA KEV: Not listed; no confirmed exploitation
Charts affected: 4,667; of 17,837 indexed, latest versions
Container images: 5,368; deployed by those charts
Fix available: 1 of 2; affected packages

Fix Javascript regexp context tracking in html/template

Carried by container images the latest versions of 4,667 of 17,837 indexed charts deploy, on 5,368 images.

Affected package	Affected versions	Fixed in	Images
golang-1.19deb	1.19.8-2	no fix listed	1
stdlibgolang	go1.13, go1.13.1, go1.13.3, go1.13.4+193 more	1.25.13	5,368

OSV records: DEBIAN-CVE-2026-56858 GO-2026-6091
Also known as: BIT-golang-2026-56858

Charts affected

4,667 by stars

Chart

Latest

Affected images

Radar Score

pgbounceryasn77-pgbouncer

0.0.8

1 of 1 See more

pgbouncer yasn77-pgbouncer 0.0.8

1 of the 1 container images this version deploys carry CVE-2026-56858.

Container image	Digest	Package	Fixed in
ghcr.io/yasn77/pgbouncer :v0.0.6	cc8c13550e44	stdlib@go1.18.6	1.25.13

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1,153

ygdrassil-monitoringygdrassil

0.4.0

7 of 10 See more

ygdrassil-monitoring ygdrassil 0.4.0

7 of the 10 container images this version deploys carry CVE-2026-56858.

Container image	Digest	Package	Fixed in
grafana/grafana :11.5.1	5781759b3d27	stdlib@go1.23.5	1.25.13
prom/alertmanager :v0.28.0	d5155cfac40a	stdlib@go1.23.4	1.25.13
quay.io/prometheus-operator/prometheus-config-reloader :v0.79.2	193280a33bc1	stdlib@go1.23.4	1.25.13
quay.io/prometheus/node-exporter :v1.8.2	4032c6d5bfd7	stdlib@go1.22.5	1.25.13
quay.io/prometheus/prometheus :v3.1.0	6559acbd5d77	stdlib@go1.23.4	1.25.13
quay.io/prometheus/pushgateway :v1.11.0	99392035ae99	stdlib@go1.23.4	1.25.13
registry.k8s.io/kube-state-metrics/kube-state-metrics :v2.14.0	37d841299325	stdlib@go1.23.3	1.25.13

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9,550

prometheusalertygqygq2

1.0.0

1 of 1 See more

prometheusalert ygqygq2 1.0.0

1 of the 1 container images this version deploys carry CVE-2026-56858.

Container image	Digest	Package	Fixed in
feiyu563/prometheus-alert :v4.9.1	224cfa68cbd9	stdlib@go1.20.6	1.25.13

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1,611

matrixdb-operatorymatrix

0.13.0

1 of 2 See more

matrixdb-operator ymatrix 0.13.0

1 of the 2 container images this version deploys carry CVE-2026-56858.

Container image	Digest	Package	Fixed in
matrixdb/kubebuilder_kube-rbac-proxy :v0.12.0	ed3c7e6291e8	stdlib@go1.18.1	1.25.13

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1,967

rawfile-csiymatrix

0.2.1

4 of 4 See more

rawfile-csi ymatrix 0.2.1

4 of the 4 container images this version deploys carry CVE-2026-56858.

Container image	Digest	Package	Fixed in
matrixdb/custom-external-provisioner :4622a07d7-20220424	7e9ffe249a51	stdlib@go1.17.8	1.25.13
matrixdb/rawfile-csi :v0.2.1	95b2e38e913d	stdlib@go1.17.9	1.25.13
matrixdb/sig-storage_csi-node-driver-registrar :v2.2.0	ba763bb01ddc	stdlib@go1.16	1.25.13
matrixdb/sig-storage_livenessprobe :v2.3.0	7ab06fe3d8a7	stdlib@go1.16	1.25.13

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8,003

nginx-vts-exporterymrs

0.1.2

1 of 1 See more

nginx-vts-exporter ymrs 0.1.2

1 of the 1 container images this version deploys carry CVE-2026-56858.

Container image	Digest	Package	Fixed in
sophos/nginx-vts-exporter :latest	f1073556b29b	stdlib@go1.13.6	1.25.13

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1,337

version-checkerymrs

0.2.3

1 of 1 See more

version-checker ymrs 0.2.3

1 of the 1 container images this version deploys carry CVE-2026-56858.

Container image	Digest	Package	Fixed in
quay.io/jetstack/version-checker :v0.2.1	5f6f8ba0b671	stdlib@go1.15.2	1.25.13

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3,025

prometheus-monitoring-stackyotron-helm-charts

1.2.0

1 of 3 See more

prometheus-monitoring-stack yotron-helm-charts 1.2.0

1 of the 3 container images this version deploys carry CVE-2026-56858.

Container image	Digest	Package	Fixed in
grafana/grafana :latest	f772d434e8fa	stdlib@go1.26.5	1.25.13

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936

ical-filter-proxyyungwood

0.3.1

1 of 1 See more

ical-filter-proxy yungwood 0.3.1

1 of the 1 container images this version deploys carry CVE-2026-56858.

Container image	Digest	Package	Fixed in
yungwood/ical-filter-proxy :0.3.1	ddc3f30ab05f	stdlib@go1.26.5	1.25.13

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synergy-wholesale-exporteryungwood

0.1.1

1 of 1 See more

synergy-wholesale-exporter yungwood 0.1.1

1 of the 1 container images this version deploys carry CVE-2026-56858.

Container image	Digest	Package	Fixed in
yungwood/synergy-wholesale-exporter :0.1.1	054dce85989b	stdlib@go1.26.5	1.25.13

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zahori-consulzahori

1.0.1

2 of 2 See more

zahori-consul zahori 1.0.1

2 of the 2 container images this version deploys carry CVE-2026-56858.

Container image	Digest	Package	Fixed in
hashicorp/consul :1.15.3	ddff34041c5c	stdlib@go1.20.4	1.25.13
hashicorp/consul-k8s-control-plane :1.1.2	62bed1bf8106	stdlib@go1.20.4	1.25.13

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5,077

zahori-moonzahori

1.0.1

3 of 3 See more

zahori-moon zahori 1.0.1

3 of the 3 container images this version deploys carry CVE-2026-56858.

Container image	Digest	Package	Fixed in
quay.io/aerokube/moon :2.5.1	a8837b00ba1c	stdlib@go1.20.4	1.25.13
quay.io/aerokube/moon-conf :2.5.1	9ca307b30080	stdlib@go1.20.4	1.25.13
quay.io/aerokube/moon-ui :2.0.5	89990b146824	stdlib@go1.20.5	1.25.13

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2,908

zahori-schedulerzahori

1.0.1

1 of 1 See more

zahori-scheduler zahori 1.0.1

1 of the 1 container images this version deploys carry CVE-2026-56858.

Container image	Digest	Package	Fixed in
zahoriaut/zahori-scheduler :1.0.0	47d0979b1184	stdlib@go1.20.5	1.25.13

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2,496

posthogzeet

0.23.2

2 of 9 See more

posthog zeet 0.23.2

2 of the 9 container images this version deploys carry CVE-2026-56858.

Container image	Digest	Package	Fixed in
altinity/clickhouse-operator :0.19.0	7a85f522c5bc	stdlib@go1.17.13	1.25.13
altinity/metrics-exporter :latest	8940ecadae65	stdlib@go1.26.5	1.25.13

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3,717

endlessh-gozekker6

0.4.0

1 of 1 See more

endlessh-go zekker6 0.4.0

1 of the 1 container images this version deploys carry CVE-2026-56858.

Container image	Digest	Package	Fixed in
ghcr.io/shizunge/endlessh-go :2026.0730.0	8826dad32623	stdlib@go1.26.5	1.25.13

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503

zookeeper-exporterzookeeper-exporter

0.1.0

1 of 1 See more

zookeeper-exporter zookeeper-exporter 0.1.0

1 of the 1 container images this version deploys carry CVE-2026-56858.

Container image	Digest	Package	Fixed in
dabealu/zookeeper-exporter :latest	86106fec315f	stdlib@go1.14.15	1.25.13

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1,249

zoo-project-druzoo-project

0.10.4

2 of 6 See more

zoo-project-dru zoo-project 0.10.4

2 of the 6 container images this version deploys carry CVE-2026-56858.

Container image	Digest	Package	Fixed in
library/postgres :18.4-alpine3.24	9a8afca54e78	stdlib@go1.24.6	1.25.13
zooproject/zoo-project :dru-19f3c4eed7c9ec9d1f0375bbe59f9d204a42bd3a	9a507cb7e2dd	stdlib@go1.26.5	1.25.13

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8,162

Container images carrying it

5,368 by charts deploying them

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

Container image	Digest	Package	Fixed in	Used by
shaowenchen/ops-server :latest	6bac5cebd125	stdlib@go1.24.9	1.25.13	1
sharanalwar/redchef-frontend :latest	5e82950b16b7	stdlib@go1.23.7	1.25.13	1
sharat87/httpbun :latest	405332d9050a	stdlib@go1.25.1	1.25.13	1
shenxn/protonmail-bridge :1.8.7-1	acf31af7c111	stdlib@go1.15.12	1.25.13	1
shlomibendavid/k8s-applier :0311240529	a22ffbe0f04e	stdlib@go1.21.7	1.25.13	1
shyim/shopware :6.4.6.0	a951c0e6b836	stdlib@go1.20.7	1.25.13	1
sigma2as/minio :20240306-3a2e4f5	c284ead9ec3e	stdlib@go1.19.2	1.25.13	1
signald/signald :0.18.2	0ffad7ccc2eb	stdlib@go1.18.1	1.25.13	1
signald/signald :0.23.2	edbff058278c	stdlib@go1.18.10	1.25.13	1
signoz/alertmanager :0.5.0	7bc7de2e33c2	stdlib@go1.14	1.25.13	1
signoz/signoz :v0.143.0	7da6b9c07db1	stdlib@go1.25.7	1.25.13	1
signoz/signoz-otel-collector :v0.144.11	403e83145e4c	stdlib@go1.25.0	1.25.13	1
sikalabs/signpost :v0.7.0	c8b0e21d61b4	stdlib@go1.24.6	1.25.13	1
sikalabs/slu :v0.72.0	7bd267f30247	stdlib@go1.21.4	1.25.13	1
sikalabs/slu :v0.34.0	fdc0c6711add	stdlib@go1.17.6	1.25.13	1
silkeh/alertmanager_matrix :0.6.1	900010497f8c	stdlib@go1.26.3	1.25.13	1
simonschneider/traefik-jwt-decode :latest	d674ac370f80	stdlib@go1.17.13	1.25.13	1
simpleidserver/faasprometheus :0.0.4	25e378d57d78	stdlib@go1.17.1	1.25.13	1
sirrend/helmup-engine :0.1.13	699e79e3d4e2	stdlib@go1.20.4	1.25.13	1
sky5367/locust-plugins-grafana :latest	d51bf68d4b26	stdlib@go1.21.8	1.25.13	1
sky5367/locust-plugins-timescale :latest	d3150f201471	stdlib@go1.18.7	1.25.13	1
skylenet/ethereum-genesis-generator :latest	210353ce7c89	stdlib@go1.17.13	1.25.13	1
skylenet/ethereum-testnet-homepage :latest	8698903e379f	stdlib@go1.17.2	1.25.13	1
slagattollas/weatherservice-practica :latest	68e7f56393fc	stdlib@go1.15.6	1.25.13	1
slamdev/config-connector-templater :0.0.3	a234541c9fa8	stdlib@go1.16.5	1.25.13	1
slamdev/external-secrets-operator :0.0.8	855f6625dda4	stdlib@go1.13.15	1.25.13	1
slamdev/flux-notifier :v0.0.8	b173d809132d	stdlib@go1.13.11	1.25.13	1
slamdev/gke-preemptible-notifier :v0.0.3	d5d6430108a3	stdlib@go1.13.11	1.25.13	1
smailkoz/torrserver :1.0.111	7b52d15de8f0	stdlib@go1.17.5	1.25.13	1
snyk/kubernetes-monitor :2.23.26	fb5ad76ce84e	stdlib@go1.25.10	1.25.13	1
softonic/homing-pigeon :0.9.6	f26d467b7b82	stdlib@go1.23.10	1.25.13	1
softonic/node-policy-webhook :0.1.2	ab6098c04a53	stdlib@go1.14.6	1.25.13	1
softonic/pod-defaulter :0.1.0	72017aed5902	stdlib@go1.14.9	1.25.13	1
softonic/preemptible-killer :1.2.6-2	94b87f1fb362	stdlib@go1.14.10	1.25.13	1
softonic/rate-limit-operator :0.1.1	910f6de37763	stdlib@go1.13.15	1.25.13	1
softwaremill/bootzooka :latest	845b5e8f8056	stdlib@go1.26.2	1.25.13	1
solarwinds/solarwinds-otel-collector :0.152.3-k8s	3c1110e8bdfb	stdlib@go1.26.4-X:boringcrypto	1.25.13	1
soldevelo/pgpool :4.6.3-debian-12-r0	044d16a65129	stdlib@go1.25.4	1.25.13	1
someblackmagic/k8s-testing-multitool :v0.1.0	6eca64b6b440	stdlib@go1.18.2	1.25.13	1
sonroyaalmerol/docker-sogo :5.12.4	3f60f3abe990	stdlib@go1.24.13	1.25.13	1
sophos/nginx-vts-exporter :latest	f1073556b29b	stdlib@go1.13.6	1.25.13	1
sorintlab/stolon :v0.16.0-pg12	36b45c0f97fc	stdlib@go1.13.8	1.25.13	1
sosedoff/pgweb :latest	a5256d416e2e	stdlib@go1.24.6	1.25.13	1
speckle/alertmanager-discord :latest	f6221ff308e9	stdlib@go1.22.4	1.25.13	1
splatform/stratos-jetstream :4.4.0-bc65c315c	886311c331b9	stdlib@go1.13.4	1.25.13	1
splunk/splunk-operator :2.0.0	c4e0d3146226	stdlib@go1.17.12	1.25.13	1
springhack/frpc_ingress :latest	4aceb821da88	stdlib@go1.19.5	1.25.13	1
srsolutions/ilias-ilserver :11-openjdk21-jre	290f50652335	stdlib@go1.26.3	1.25.13	1
sstarcher/ecr-cleaner :0.1.1	2d43c390cb19	stdlib@go1.14.2	1.25.13	1
sstarcher/helm-exporter :0.5.0	11769d01ba35	stdlib@go1.13.6	1.25.13	1