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

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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

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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
stakewiselabs/bls-horcrux :v1.0.0	2afd0c0b34cb	idna@2.10	3.15	1
stashapp/stash :latest	24dbd7607174	idna@2.8 python-idna@2.8-1	3.15 no fix listed	1
stashapp/stash :v0.31.1	df744af5a0c9	idna@3.11	3.15	1
statcan/ckan :2.9	3921305425b8	idna@2.8 python-pip@20.0.2-5ubuntu1.5	3.15 no fix listed	1
stratospire/activityrelay :0.2.3	a4c34cb01117	idna@3.4	3.15	1
streamnative/apache-pulsar-grafana-dashboard-k8s :0.0.16	11bceacec8fb	python-pip@20.0.2-5ubuntu1.5	no fix listed	1
streamnative/private-cloud-console :v2.3.27-all	91e54375e154	idna@3.7	3.15	1
substratusai/verba :v0.4.0-baseURL2	61695be635eb	idna@3.7	3.15	1
svtechnmaa/svtech_icinga2 :v1.1.6	67be2aba9436	idna@3.6	3.15	1
svtechnmaa/svtech_rundeck :v1.2.2	6e368ace0977	idna@3.3 python-idna@2.8-1	3.15 no fix listed	1
svtechnmaa/svtech_rundeck_option_provider :v1.1.1	674fad30a51f	idna@3.6	3.15	1
swisscomcloud/esc-vm-scheduler-web :latest	b6639d1a922e	idna@3.4	3.15	1
sysnet4admin/colosseum-rwd :log	74ded2d92f07	idna@3.10	3.15	1
t3nde/gtmetrix-bq :0.2.0	d2939e9a719b	idna@2.9	3.15	1
tachyongroup/mlflow-deployment-controller :mlflow-controller-0.1.8	7e79b9000856	idna@3.4	3.15	1
tachyongroup/mlflow-deployment-controller-ui :mlflow-controller-0.1.8	f4f7fabe1037	idna@3.3	3.15	1
taigaio/taiga-back :6.4.2	9f97323cc150	idna@2.8	3.15	1
teknas09/bird-pod :latest	12a1fa85c4aa	idna@3.7	3.15	1
tenableofficial/nessus :latest	c88e43fe1a8c	idna@3.6	3.15	1
th0th/node-red :4.0.3-debian	d06fa39f7406	idna@2.10	3.15	1
thelande/kasa_exporter :v0.2.3	a1fdb8baa152	idna@3.7	3.15	1
thongngo3301/stakefish :latest	a341af5976e3	idna@3.7	3.15	1
timescale/timescaledb-ha :pg15-latest	a8e3322e1cf9	idna@3.3 python-idna@3.3-1	3.15 3.3-1ubuntu0.2	1
timescale/timescaledb-ha :pg14.6-ts2.9.1-p1	cdb9ae118899	idna@3.3 python-idna@3.3-1	3.15 3.3-1ubuntu0.2	1
timescale/timescaledb-ha :pg16	d7db8f1085a3	idna@3.3 python-pip@22.0.2+dfsg-1ubuntu0.7	3.15 no fix listed	1
timescale/timescaledb-ha :pg17.2-ts2.18.2	e8d0a9cc3db5	idna@3.10 python-idna@3.3-1ubuntu0.1 python-pip@22.0.2+dfsg-1ubuntu0.5	3.15 3.3-1ubuntu0.2 no fix listed	1
timescale/timescaledb-ha :pg14-ts2.6-latest	ed719c0cd19d	idna@3.3 python-idna@3.3-1	3.15 3.3-1ubuntu0.2	1
timothyclarke/wptagent :2018-01-23	22c41e5ca7e2	idna@2.6 python-pip@8.1.1-2ubuntu0.4	3.15 no fix listed	1
tinymediamanager/tinymediamanager :5.3.2	2b34dc85099e	idna@3.11	3.15	1
tock/gen-ai-orchestrator-server :25.10.7	abf7880e0449	idna@3.11	3.15	1
tombursch/kitchenowl-backend :v0.7.8	b48e4ab727cd	idna@3.13	3.15	1
tomsajan/netio-exporter :0.0.5	fb61907707b8	idna@3.7	3.15	1
tomsquest/docker-radicale :3.1.1.0	4759cc353a1d	idna@3.2	3.15	1
tomsquest/docker-radicale :3.6.1.0	a594c624c5a6	idna@3.11	3.15	1
trungkien210493/icinga2-report :v1.7.1	2cc8c3763c4c	idna@2.8	3.15	1
tussanakorndev/kube-pod-alerts :1.0.5	216fdadadf9a	idna@3.11	3.15	1
twentycrm/twenty-postgres-spilo :latest	2f78405a78be	idna@3.3 python-idna@3.3-1	3.15 3.3-1ubuntu0.2	1
ubcctlt/barman :v2.19	cbbbbc8ae16b	idna@2.10	3.15	1
vabene1111/recipes :2.3.5	0f8d061895e9	idna@3.11	3.15	1
vabene1111/recipes :1.0.5.2	ec4e9e2905b0	idna@2.9	3.15	1
veecode/devportal	c443520aebf7	idna@3.7	3.15	1
viadee/docker-hub-rate-limit-exporter :version-1.5	2e27e3b3ee56	idna@2.10	3.15	1
vividplanet/swr-cache-proxy :v1	ae1c5b1cbecb	idna@2.5 python-idna@2.5-5.el8	3.15 0:2.5-8.el8_10	1
voltha/voltha-cli :1.6.0	c4e41e92f046	idna@2.6 python-pip@8.1.1-2ubuntu0.4	3.15 no fix listed	1
voltha/voltha-netconf :1.6.0	37f80524c207	idna@2.6 python-pip@8.1.1-2ubuntu0.4	3.15 no fix listed	1
voltha/voltha-ofagent :1.6.0	9ee8c1f4428c	idna@2.6 python-pip@8.1.1-2ubuntu0.4	3.15 no fix listed	1
voltha/voltha-tester :1.7.0	655c3048a602	idna@2.6 python-pip@8.1.1-2ubuntu0.4	3.15 no fix listed	1
voltha/voltha-voltha :1.6.0	ff596b62de59	idna@2.6 python-pip@8.1.1-2ubuntu0.4	3.15 no fix listed	1
wallabag/wallabag :2.4.2	5e4c26a7fb4a	idna@2.9	3.15	1
wallarm/ingress-python :4.6.0-1	5cb2ae08b40f	idna@2.6	3.15	1