CVE-2026-45409

Medium

Advisory

Published 19 May 2026In the index since 5 Sept 2026

Severity: Medium; worst across findings
CVSS: 5.3; base score, highest
EPSS: 0.004; 34th percentile
CISA KEV: Not listed; no confirmed exploitation
Charts affected: 921; of 17,787 indexed, latest versions
Container images: 979; deployed by those charts
Fix available: 4 of 5; affected packages

Internationalized Domain Names in Applications (IDNA): Specially crafted inputs to idna.encode() can bypass CVE-2024-3651 fix

Carried by container images the latest versions of 921 of 17,787 indexed charts deploy, on 979 images.

Affected package	Affected versions	Fixed in	Images
idnapypi	2.4, 2.5, 2.6, 2.7+15 more	3.15	942
python-pipdeb	1.5.4-1ubuntu4, 8.1.1-2ubuntu0.4, 9.0.1-2.3~ubuntu1, 9.0.1-2.3~ubuntu1.18.04.1+23 more	no fix listed	108
python-idnadeb	2.6-1, 2.8-1, 2.8-1ubuntu0.1, 3.3-1+3 more	3.3-1ubuntu0.2, 3.6-2ubuntu0.2	69
python-idnarpm	2.5-5.el8, 2.5-7.el8_10, 2.10-7.el9, 2.10-7.el9_4.1+1 more	0:2.5-8.el8_10, 0:2.10-8.el9_8, 0:3.7-6.el10_2	64
py3-pipapk	25.0.1-r0, 25.2-r0, 26.0.1-r1	26.1.2-r1	3

OSV records: CGA-9qj9-xwv6-6g35 CGA-jxvh-c6v2-m7x3 DEBIAN-CVE-2026-45409 GHSA-65pc-fj4g-8rjx RHSA-2026:54290 RHSA-2026:54481 RHSA-2026:54484 RLSA-2026:54481 UBUNTU-CVE-2026-45409
Also known as: CGA-gpf6-q7mq-4ppj, CGA-qfx6-f9w7-v6f4, PYSEC-2026-215, USN-8549-1

Charts affected

921 by stars

Chart

Latest

Affected images

Radar Score

kongwallarm

4.6.3

1 of 7 See more

kong wallarm 4.6.3

1 of the 7 container images this version deploys carry CVE-2026-45409.

Container image	Digest	Package	Fixed in
wallarm/ingress-python :4.6.0-1	5cb2ae08b40f	idna@2.6	3.15

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11,444

wallarm-node-nextwallarm

0.5.3

1 of 2 See more

wallarm-node-next wallarm 0.5.3

1 of the 2 container images this version deploys carry CVE-2026-45409.

Container image	Digest	Package	Fixed in
wallarm/node-helpers :5.0.2-1	097cadc42336	idna@3.7	3.15

Open the chart page →

2,408

wallarm-oobwallarm

0.23.0

1 of 3 See more

wallarm-oob wallarm 0.23.0

1 of the 3 container images this version deploys carry CVE-2026-45409.

Container image	Digest	Package	Fixed in
wallarm/node-helpers :6.10.1	aecd88b24c51	idna@3.7	3.15

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2,824

wasabi-s3-operatorwasabi-s3-operator

0.2.7

1 of 1 See more

wasabi-s3-operator wasabi-s3-operator 0.2.7

1 of the 1 container images this version deploys carry CVE-2026-45409.

Container image	Digest	Package	Fixed in
kenchrcum/wasabi-s3-operator :0.2.7	ce657c622ce5	idna@3.11	3.15

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629

wazuhwazuh-helm-eks

1.2.10

1 of 6 See more

wazuh wazuh-helm-eks 1.2.10

1 of the 6 container images this version deploys carry CVE-2026-45409.

Container image	Digest	Package	Fixed in
wazuh/wazuh-manager :4.14.4	5a065930682d	idna@3.7	3.15

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5,484

wazuh-manager-filebeatwazuh-manager-filebeat

0.1.0-gamma

1 of 1 See more

wazuh-manager-filebeat wazuh-manager-filebeat 0.1.0-gamma

1 of the 1 container images this version deploys carry CVE-2026-45409.

Container image	Digest	Package	Fixed in
iosifache/wazuh-manager-filebeat :latest	85df3f04b5da	idna@2.9	3.15

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11,167

supersetwbstack

0.1.0

1 of 1 See more

6,540

weather-chartweather-web-app

0.1.0

1 of 1 See more

weather-chart weather-web-app 0.1.0

1 of the 1 container images this version deploys carry CVE-2026-45409.

Container image	Digest	Package	Fixed in
zohardocker12/weather_app_flask :latest	b86d60dbb68d	idna@3.3	3.15

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2,671

ambassadorwenerme

6.9.5

1 of 2 See more

4,086

emissary-ingresswenerme

8.12.2

1 of 2 See more

emissary-ingress wenerme 8.12.2

1 of the 2 container images this version deploys carry CVE-2026-45409.

Container image	Digest	Package	Fixed in
datawire/emissary :3.12.2	1f67a1292d2a	idna@3.7	3.15

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10,857

juicefs-csi-driverwenerme

0.32.5

1 of 5 See more

juicefs-csi-driver wenerme 0.32.5

1 of the 5 container images this version deploys carry CVE-2026-45409.

Container image	Digest	Package	Fixed in
juicedata/juicefs-csi-driver :v0.32.5	95008ba63318	idna@3.3 python-idna@3.3-1+deb12u1	3.15 no fix listed

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8,824

ceph-csi-cephfswikimedia

0.1.8

1 of 5 See more

ceph-csi-cephfs wikimedia 0.1.8

1 of the 5 container images this version deploys carry CVE-2026-45409.

Container image	Digest	Package	Fixed in
quay.io/cephcsi/cephcsi :v3.7.2	f7f8228f17cc	idna@2.5	3.15

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10,286

ceph-csi-rbdwikimedia

0.1.13

1 of 6 See more

ceph-csi-rbd wikimedia 0.1.13

1 of the 6 container images this version deploys carry CVE-2026-45409.

Container image	Digest	Package	Fixed in
quay.io/cephcsi/cephcsi :v3.7.2	f7f8228f17cc	idna@2.5	3.15

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11,785

docker-hub-rate-limit-exporterwiremind

0.3.0

1 of 1 See more

docker-hub-rate-limit-exporter wiremind 0.3.0

1 of the 1 container images this version deploys carry CVE-2026-45409.

Container image	Digest	Package	Fixed in
viadee/docker-hub-rate-limit-exporter :version-1.5	2e27e3b3ee56	idna@2.10	3.15

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1,843

marge-botwiremind

1.4.4

1 of 1 See more

marge-bot wiremind 1.4.4

1 of the 1 container images this version deploys carry CVE-2026-45409.

Container image	Digest	Package	Fixed in
hiboxsystems/marge-bot :0.14.0	dcffb926e563	idna@3.4	3.15

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5,548

powerdnsadminwitcom-gmbh

0.3.4

1 of 1 See more

powerdnsadmin witcom-gmbh 0.3.4

1 of the 1 container images this version deploys carry CVE-2026-45409.

Container image	Digest	Package	Fixed in
ngoduykhanh/powerdns-admin :v0.2.4	ba36ab196d3d	idna@2.10	3.15

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2,643

xkopsxkops

0.1.0

2 of 5 See more

xkops xkops 0.1.0

2 of the 5 container images this version deploys carry CVE-2026-45409.

Container image	Digest	Package	Fixed in
hamzaarshad10/querybackend :1.6.2	2c1c3b86a8e7	idna@3.10	3.15
hamzaarshad10/querypodpy :1.7	154f38e8668e	idna@3.10	3.15

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13,197

enterprise-gatewayzeet

3.2.2

1 of 2 See more

enterprise-gateway zeet 3.2.2

1 of the 2 container images this version deploys carry CVE-2026-45409.

Container image	Digest	Package	Fixed in
elyra/kernel-image-puller :3.2.2	c922f1f1646a	idna@3.4	3.15

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1,838

zerossl-cert-managerzerossl-cert-manager

0.1.0

1 of 2 See more

zerossl-cert-manager zerossl-cert-manager 0.1.0

1 of the 2 container images this version deploys carry CVE-2026-45409.

Container image	Digest	Package	Fixed in
andreymileshin/zerossl-issuer :v1.0.0	e0825acc9e48	idna@3.10	3.15

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569

alertmanager-matrix-forwarderzloi-space

1.0.1

1 of 2 See more

alertmanager-matrix-forwarder zloi-space 1.0.1

1 of the 2 container images this version deploys carry CVE-2026-45409.

Container image	Digest	Package	Fixed in
matrixdotorg/pantalaimon :v0.10.4	ba6a587fa508	idna@3.3	3.15

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3,118

grafana-matrix-forwarderzloi-space

1.0.0

1 of 2 See more

grafana-matrix-forwarder zloi-space 1.0.0

1 of the 2 container images this version deploys carry CVE-2026-45409.

Container image	Digest	Package	Fixed in
matrixdotorg/pantalaimon :v0.10.4	ba6a587fa508	idna@3.3	3.15

Open the chart page →

1,636

Container images carrying it

979 by charts deploying them

A fixed version is listed for 4 of the 5 affected packages.

Container image	Digest	Package	Fixed in	Used by
iosifache/wazuh-manager-filebeat :latest	85df3f04b5da	idna@2.9	3.15	1
istio/examples-bookinfo-productpage-v1 :1.17.0	6668bcf42ef0	idna@2.8	3.15	1
istio/examples-helloworld-v1 :latest	328b237e4fb1	idna@3.6	3.15	1
istio/examples-helloworld-v2 :latest	0a7f02b2c7c9	idna@3.6	3.15	1
jaedb/iris :latest	048cfbf58d57	idna@3.3 python-idna@3.3-1+deb12u1	3.15 no fix listed	1
jamoos/kweather :history	163e2e8a6e87	idna@3.7	3.15	1
jertel/elastalert2 :2.2.3	4dcc0ef93efc	idna@3.3	3.15	1
jmferrer/azure-devops-agent :latest	030f68ec6998	idna@2.8	3.15	1
john19968010/fastapi-template :latest	31a90f6bd69c	idna@3.4	3.15	1
jonasal/devpi-server :6.17.0-alpine	ec1eee99a18d	idna@3.11	3.15	1
jordan/icinga2 :latest	f75025fe8ea8	idna@3.3 python-idna@3.3-1+deb12u1	3.15 no fix listed	1
josh5/unmanic :0.2.6	4d49c4816260	idna@3.6 python-pip@22.0.2+dfsg-1ubuntu0.4	3.15 no fix listed	1
juicedata/juicefs-csi-driver :v0.32.5	95008ba63318	idna@3.3 python-idna@3.3-1+deb12u1	3.15 no fix listed	1
juicedata/juicefs-csi-driver :v0.23.0	d915e899e322	idna@2.10	3.15	1
julb/alertmanager-gchat-integration :1.0.5	837c4038a0dd	idna@2.10	3.15	1
julb/kubernetes-configmap-sync :1.1.0	d7d8836366ad	idna@2.10	3.15	1
jupyterhub/jupyterhub :5.4.6	3974ba945e65	python-pip@24.0+dfsg-1ubuntu1.3	no fix listed	1
jupyterhub/k8s-hub :3.0.1-0.dev.git.6287.hbfb05cd6	5a0ceed1300a	idna@3.4	3.15	1
jupyterhub/k8s-hub :0.11.1	b6b4a1a34bf0	idna@2.10 python-pip@20.0.2-5ubuntu1.1	3.15 no fix listed	1
jupyterhub/k8s-hub :1.2.0	e4770285aaf7	idna@2.10 python-pip@20.0.2-5ubuntu1.6	3.15 no fix listed	1
jupyterhub/k8s-singleuser-sample :3.0.1-0.dev.git.6287.hbfb05cd6	8e4778efec8e	idna@3.4	3.15	1
jupyterhub/k8s-singleuser-sample :0.11.1	e3e6f3051df8	idna@2.10	3.15	1
jupyterjsc/jupyterhub-outpost :2.3.1	aea53b13f235	idna@3.11	3.15	1
keitaro/ckan-datapusher :0.0.17	5bf1a45f45c1	idna@2.10	3.15	1
kelvinsp/mlflow :1.26.1	cd33e6db2a59	idna@3.3	3.15	1
kenchrcum/ansible-playbook-operator :0.1.7	12fb213debf1	idna@3.11	3.15	1
kenchrcum/fluxcd-helm-upgrader :0.7.7	c326e28a8f5f	idna@3.13	3.15	1
kenchrcum/grafana-dashboard-converter :0.3.10	5310497aea3f	idna@3.11	3.15	1
kenchrcum/hetzner-s3-operator :0.1.3	84dae7aeea5b	idna@3.11	3.15	1
kenchrcum/wasabi-s3-operator :0.2.7	ce657c622ce5	idna@3.11	3.15	1
kennethreitz/httpbin :latest	599fe5e50731	idna@2.6 python-idna@2.6-1 python-pip@9.0.1-2.3~ubuntu1	3.15 no fix listed no fix listed	1
kfirfer/elasticsearch-cacher :0.0.1	cf81d0959256	idna@3.10	3.15	1
kfirfer/kibana-index-pattern-updater :1.0.12	e88cfcec5c93	idna@2.10	3.15	1
kfirfer/scripts :0.0.24	81e5c4e5d70e	idna@3.3	3.15	1
kfirfer/slackgpt :0.0.15	461331bd838e	idna@3.4	3.15	1
kfserving/models-web-app :v0.6.1	f322d6ffdfa3	idna@3.2	3.15	1
kinseii/wazuh-agent :4.14.1	7160eb143728	idna@3.3 python-idna@3.3-1+deb12u1	3.15 no fix listed	1
kiwigrid/k8s-sidecar :1.1.0	3e86186656d3	idna@2.10	3.15	1
kiwigrid/k8s-sidecar :1.3.0	65095a82d4a1	idna@2.10	3.15	1
kiwigrid/k8s-sidecar :0.0.18	6eb52513d59e	idna@2.8	3.15	1
kiwigrid/k8s-sidecar :1.12.0	89739be9ff38	idna@2.10	3.15	1
kiwigrid/k8s-sidecar :0.0.16	899ccd0b1f54	idna@2.8	3.15	1
kiwigrid/k8s-sidecar :0.1.20	af151f677a63	idna@2.8	3.15	1
kiwigrid/k8s-sidecar :1.27.6	db85bd553253	idna@3.8	3.15	1
kiwigrid/k8s-sidecar :1.26.2	e271016441af	idna@3.7	3.15	1
knspar/phronetis :0.1.46	09499d2dc91a	idna@3.10 python-pip@24.0+dfsg-1ubuntu1.1	3.15 no fix listed	1
knspar/phronetis-operator :0.1.6	0c4f0543ee58	idna@3.10	3.15	1
kobotoolbox/kobocat :2.022.24a	b15679454415	idna@3.3	3.15	1
kobotoolbox/kpi :2.022.24d	bcacc01bccd4	idna@3.3	3.15	1
kocolosk/couchdb-statefulset-assembler :1.2.0	6effb982154e	idna@2.6	3.15	1