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
sstarcher/kube-ebs-tagger :0.1.0	1f8cae8cfa80	stdlib@go1.13.9	1.25.13	1
stakater/forecastle :v2.0.2	382cd9572352	stdlib@go1.26.4	1.25.13	1
stakater/forecastle :v1.0.138	86b24cdef409	stdlib@go1.22.1	1.25.13	1
stakater/gitwebhookproxy :v0.2.79	c1226e5270cd	stdlib@go1.13.1	1.25.13	1
stakater/k8s-cost-optimizer :v0.0.5	450415ce1b4e	stdlib@go1.17.8	1.25.13	1
stakater/konfigurator :v0.1.39	3409565b1ef5	stdlib@go1.17.13	1.25.13	1
stakater/reloader :v1.0.15	f4b87a8e56d4	stdlib@go1.20.1	1.25.13	1
stakater/tronador :v0.0.1	37ce9acf2722	stdlib@go1.15.11	1.25.13	1
stakater/whitelister :v0.0.16	39107924063e	stdlib@go1.13.1	1.25.13	1
stakater/workshop-operator :v0.0.38	97bf456cc97c	stdlib@go1.16.13	1.25.13	1
stakkato95/twitter-service-analytics :0.1.0	5d48906d66b3	stdlib@go1.18.3	1.25.13	1
stakkato95/twitter-service-graphql :0.1.1	3cbe857234f2	stdlib@go1.18.3	1.25.13	1
stakkato95/twitter-service-tweets :0.1.1	8412d8a8cac3	stdlib@go1.18.3	1.25.13	1
stakkato95/twitter-service-users :0.1.1	456049efee9a	stdlib@go1.18.3	1.25.13	1
stashapp/stash :latest	24dbd7607174	stdlib@go1.13.15	1.25.13	1
stashapp/stash :v0.31.1	df744af5a0c9	stdlib@go1.24.3	1.25.13	1
stashapp/stash-box :latest	a534c8afdf39	stdlib@go1.23.10	1.25.13	1
statcan/ingress-istio-controller :1.4.0	d7d6bd180c46	stdlib@go1.18.10	1.25.13	1
statcan/kubernetes-sidecar-terminator :2.0.2	bc361ee7748f	stdlib@go1.19.10	1.25.13	1
statping/statping :v0.90.65	32f26fffca46	stdlib@go1.14.8	1.25.13	1
stevenweathers/thunderdome-planning-poker :latest	c7eb7b10f186	stdlib@go1.26.4	1.25.13	1
streamnative/apache-pulsar-grafana-dashboard-k8s :0.0.16	11bceacec8fb	stdlib@go1.15.6	1.25.13	1
streamnative/apache-pulsar-grafana-dashboard-k8s :0.0.10	ebcf7f033b54	stdlib@go1.13.4	1.25.13	1
streamnative/pulsar-resources-operator :v0.21.2	82434bb2a8ad	stdlib@go1.25.12	1.25.13	1
streamnative/pulsar_vault_init :v1.0.7	31533fa9fab7	stdlib@go1.17.11	1.25.13	1
stubin87/tiny-api :v1.1.0	2e5c42e92ec8	stdlib@go1.19.1	1.25.13	1
su541/cert-manager-desec-webhook :latest	371ee33f83c1	stdlib@go1.19.10	1.25.13	1
subspacecommunity/subspace :1.5.0	e2042b63fb35	stdlib@go1.14.6	1.25.13	1
summerwind/actions-runner-controller :v0.27.6	2128f81dbede	stdlib@go1.20.7	1.25.13	1
sumuduliya/hello-world :latest	b7788a2984a3	stdlib@go1.19.13	1.25.13	1
supabase/gotrue :v2.189.0	385184459f57	stdlib@go1.25.8	1.25.13	1
supabase/gotrue :v2.91.0	7174d551d720	stdlib@go1.20.7	1.25.13	1
supabase/gotrue :v2.163.0	ba4ddc594b0b	stdlib@go1.22.3	1.25.13	1
supabase/postgres :17.6.1.136	f371b5f3f2ac	stdlib@go1.26.1	1.25.13	1
superorbital/cludod :0.0.2-alpha	d59732f61d6e	stdlib@go1.17.6	1.25.13	1
superque/smokeping-prober :v0.11.0	28ca636d1dee	stdlib@go1.26.1	1.25.13	1
superseriousbusiness/gotosocial :0.22.1	0078ca451dda	stdlib@go1.25.12	1.25.13	1
supporttools/do-database-metrics-adapter :1.0.2	ab55fd5a69c3	stdlib@go1.22.3	1.25.13	1
supporttools/go-redis-proxy :0.0.7	cbd45f6b02b8	stdlib@go1.21.6	1.25.13	1
supporttools/go-web-cache :v1.3.2	f4f775dd43b9	stdlib@go1.21.6	1.25.13	1
supporttools/hello-world :v185	fab12b15c832	stdlib@go1.24.3	1.25.13	1
supporttools/powerdns-admin-proxy :5	e3687d66bcfa	stdlib@go1.21.3	1.25.13	1
surajwarbhe/grafana :v1	85248611e9f1	stdlib@go1.14.3	1.25.13	1
svtechnmaa/svtech_grafana :v1.2.2	1d71314424aa	stdlib@go1.20.4	1.25.13	1
svtechnmaa/svtech_icingadb :v1.1.2	6d91c2e4e882	stdlib@go1.21.5	1.25.13	1
svtechnmaa/svtech_icingaweb2 :v1.0.2	a59d0b81dde2	stdlib@go1.21.6	1.25.13	1
svtechnmaa/svtech_rundeck :v1.2.2	6e368ace0977	stdlib@go1.20.5	1.25.13	1
svtechnmaa/svtech_syncthing :v1.0.4	1a75d88031fe	stdlib@go1.21.5	1.25.13	1
syepes/network_exporter :1.8.0	00af1691570e	stdlib@go1.25.1	1.25.13	1
syncthing/syncthing :2.1.0	7c60eb0ec887	stdlib@go1.26.3	1.25.13	1