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
prowlercloud/prowler-api :5.31.1	4f252d579be2	stdlib@go1.26.3-X:jsonv2	1.25.13	1
pschiffe/pdns-admin :0.4.1	37ebba8c2b8f	stdlib@go1.21.5	1.25.13	1
pschiffe/pdns-mysql :alpine	a7d2d021c788	stdlib@go1.21.5	1.25.13	1
pschiffe/pdns-pgsql :5.0	a227d41bc665	stdlib@go1.21.5	1.25.13	1
pubeldev/prusa_exporter :2.0.0	1091665a020a	stdlib@go1.25.5	1.25.13	1
pulumi/pulumi-kubernetes-operator :v2.5.1	7dace4491358	stdlib@go1.24.13	1.25.13	1
pysga1996/redis :latest	3af6d0c7db19	stdlib@go1.18.2	1.25.13	1
qichenxu4pd/mysqlweb :1.2	d758d41d9c6b	stdlib@go1.18.2	1.25.13	1
qmcgaw/gluetun :v3.41.1	1a5bf4b4820a	stdlib@go1.25.7	1.25.13	1
qmcgaw/gluetun :v3.40.0	2b42bfa04675	stdlib@go1.23.4	1.25.13	1
qonstrukt/php :8.4-v8-apache	089af7925aa1	stdlib@go1.26.4	1.25.13	1
qoveryrd/digital-mobius :0.1.4	b30a9398a83c	stdlib@go1.15.5	1.25.13	1
quiq/docker-registry-ui :0.9.4	91281da47036	stdlib@go1.18	1.25.13	1
qumine/ingress-controller :v0.8.5	f2c8a2148381	stdlib@go1.19	1.25.13	1
qumine/minecraft-server :v0.1.15	c0b650d51132	stdlib@go1.19.4	1.25.13	1
rabbitmqoperator/cluster-operator :1.8.3	231e7ce0e905	stdlib@go1.17	1.25.13	1
rabbitmqoperator/cluster-operator :2.19.2	840be4bad78e	stdlib@go1.25.8	1.25.13	1
rabbitmqoperator/cluster-operator :2.6.0	8651dd3cec51	stdlib@go1.20.11	1.25.13	1
rahulbhiwagade122/desishowbiz :latest	08490b70998c	stdlib@go1.23.7	1.25.13	1
ralexstokes/eth2-fork-mon :latest	c0d4bbefd31f	stdlib@go1.16.7	1.25.13	1
rancher/hardened-cni-plugins :v1.4.0-build20240122	2581c5490bab	stdlib@go1.20.7	1.25.13	1
rancher/hardened-cni-plugins :v1.2.0-build20240108	4f0fd4a0201c	stdlib@go1.20.7	1.25.13	1
rancher/hardened-flannel :v0.24.0-build20240108	de22a17107b6	stdlib@go1.20.7	1.25.13	1
rancher/hardened-multus-cni :v4.0.2-build20240208	7d0f41b72eb7	stdlib@go1.20.7	1.25.13	1
rancher/harvester-cloud-provider :v0.2.8	199961f11ba6	stdlib@go1.26.5	1.25.13	1
rancher/helm-controller :v0.17.4	946ae0d13229	stdlib@go1.25.12	1.25.13	1
rancher/k3s :v1.28.2-k3s1	8c2599ecfca8	stdlib@go1.20.8	1.25.13	1
rancher/k3s :v1.25.3-k3s1	eaa270df79cc	stdlib@go1.19.2	1.25.13	1
rancher/kubectl :v1.25.0	85a0d1148784	stdlib@go1.19	1.25.13	1
rancher/kube-webhook-certgen :v1.14.5-hardened2	6bb869baf40b	stdlib@go1.26.2	1.25.13	1
rancher/local-path-provisioner :v0.0.36	1eba82e9c386	stdlib@go1.26.3	1.25.13	1
rancher/local-path-provisioner :v0.0.32	9289da488b07	stdlib@go1.24.4	1.25.13	1
rancher/local-path-provisioner :v0.0.30	9b9148811700	stdlib@go1.23.1	1.25.13	1
rancher/local-path-provisioner :v0.0.20	d5999b20a1b1	stdlib@go1.16.6	1.25.13	1
rancher/local-path-provisioner :v0.0.22	e34c88ae0aff	stdlib@go1.16.15	1.25.13	1
rancher/local-path-provisioner :v0.0.37	e757967a5ec3	stdlib@go1.26.5	1.25.13	1
rancher/mirrored-cloud-provider-vsphere :v1.31.1	febfd0517838	stdlib@go1.22.8	1.25.13	1
rancher/mirrored-kube-vip-kube-vip-iptables :v1.2.3	89c3f898ac5a	stdlib@go1.26.5	1.25.13	1
rancher/mirrored-library-traefik :2.9.4	0842af6afcdf	stdlib@go1.19.2	1.25.13	1
rancher/mirrored-longhornio-csi-attacher :v4.11.0-20260428	fe417c28a6b8	stdlib@go1.25.9	1.25.13	1
rancher/mirrored-longhornio-csi-node-driver-registrar :v2.16.0-20260428	e82a8c8f800d	stdlib@go1.25.9	1.25.13	1
rancher/mirrored-longhornio-csi-provisioner :v5.3.0-20260428	9e519a21a77c	stdlib@go1.25.9	1.25.13	1
rancher/mirrored-longhornio-csi-resizer :v2.1.0-20260428	41cb674d1154	stdlib@go1.25.9	1.25.13	1
rancher/mirrored-longhornio-csi-snapshotter :v8.5.0-20260428	1975fac3890f	stdlib@go1.25.9	1.25.13	1
rancher/mirrored-sig-storage-snapshot-controller :v6.1.0	934863015367	stdlib@go1.18	1.25.13	1
rancher/mirrored-sig-storage-snapshot-validation-webhook :v6.1.0	deac027820ae	stdlib@go1.18	1.25.13	1
rancher/nginx-ingress-controller :v1.14.5-hardened2	6cbc1e932b5b	stdlib@go1.24.13	1.25.13	1
rancher/pushprox-client :v0.1.0-rancher2-client	a41cd716c412	stdlib@go1.16.4	1.25.13	1
rancher/pushprox-proxy :v0.1.0-rancher2-proxy	3126395b966c	stdlib@go1.16.4	1.25.13	1
rancher/rancher :v2.15.1	5f6c4dc52a05	stdlib@go1.26.5	1.25.13	1