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
openzaak/open-zaak :1.6.0	2ca2ea6e0ae9	idna@3.3	3.15	1
owanio1992/devpi :6.16.0	4ade8e1e4d7e	idna@3.10	3.15	1
oxheadalpha/tezos-k8s-utils :5.3.4	d9faed45bf1c	idna@3.3	3.15	1
pangeo/base-notebook :2024.01.15	5fbe688a4f80	idna@3.4	3.15	1
pecan/monitor :1.7.2	73b2074f3fec	idna@2.8	3.15	1
phan2410/dummy-service :0.0.8	9c6ed6de26ca	idna@3.10	3.15	1
phan2410/falcon-asgi-server :0.1.0	4a86d138832d	idna@3.10	3.15	1
phntom/email-manager :0.1.22	d8e2a9f2f085	idna@3.4	3.15	1
phntom/external-dns-host-network :0.0.12	3adadbac8443	idna@3.4	3.15	1
phntom/stocks-nasdaq-crawler :0.0.28	d2b844700b57	idna@2.10	3.15	1
phsmith/rundeck-exporter :2.6.1	0265a7616ae8	idna@3.4	3.15	1
pnnlmiscscripts/gitlab-runner-operator :0.1.3-1	155131891741	idna@2.9	3.15	1
pnnlmiscscripts/tenant-namespace-operator :0.1.24-1	8af4b7551d40	idna@2.5 python-idna@2.5-5.el8	3.15 0:2.5-8.el8_10	1
prefecthq/prefect :2.20.4-python3.10	1df4b5b6238a	idna@3.8	3.15	1
prompve/prometheus-pve-exporter :3.8.2	e3d501a82df5	idna@3.7	3.15	1
prompve/prometheus-pve-exporter :3.4.2	fcf041f0c24d	idna@3.7	3.15	1
prompve/prometheus-pve-exporter :2.0.1	ff6749eb03b0	idna@2.9	3.15	1
pryorda/vmware_exporter :v0.18.4	79925e63e59f	idna@3.4	3.15	1
pryorda/vmware_exporter :v0.18.3	e0f5ba8b7856	idna@3.3	3.15	1
psono/psono-server :5.0.0	3b974b43ea03	idna@3.7	3.15	1
rdavidoff/twitch-channel-points-miner-v2 :1.8.6	7ae4c5135771	idna@3.4	3.15	1
redash/redash :25.8.0	00d813437db5	idna@3.10	3.15	1
redash/redash :10.0.0.b50363	9392753c0376	idna@2.8	3.15	1
redash/redash :26.3.0	c5c9148f5c38	idna@3.10	3.15	1
redislabs/redisearch :2.4.14	33561794c5c8	idna@3.3	3.15	1
redislabs/redisinsight :1.14.0	b03ab1426d0d	idna@3.3	3.15	1
reportportal/service-auto-analyzer :5.7.2	95ada4a216ce	idna@2.8	3.15	1
reportportal/service-metrics-gatherer :1.1.20	2a0e6dc11161	idna@2.8	3.15	1
rezachalak/bzen-mongo :1.0.0	34f694325191	idna@3.4 python-pip@20.0.2-5ubuntu1.9	3.15 no fix listed	1
rhasspy/wyoming-speech-to-phrase :1.4.3	e532f0dbc6b2	idna@3.11	3.15	1
roadiehq/community-backstage-image :latest	ef355bf5b639	idna@3.2	3.15	1
robmarkcole/deepstack-ui :latest	410275726459	idna@3.2	3.15	1
robotshop/rs-payment :latest	774b52c6180d	idna@3.2	3.15	1
robustadev/krr :v1.30.0	b8d782e568c7	idna@3.7	3.15	1
rommapp/romm :5.2.0	3512f2ca4557	idna@3.10	3.15	1
rommapp/romm :4.4.1	b909e95d1aab	idna@3.10	3.15	1
rook/ceph :v1.20.7	2f970c425617	idna@2.10	3.15	1
rook/ceph :v1.19.2	944a1dd70496	idna@2.10	3.15	1
rtuszik/photon-docker :2.4.0	21549c60f9e6	idna@3.10	3.15	1
runx1/opta-agent :latest	0ca3867d3200	idna@3.3	3.15	1
saidsef/scapy-containerised :v2025.02	f17f7c435891	idna@3.10	3.15	1
salehmir/jesse :1.10.10	1afa95f979e9	idna@3.10	3.15	1
saltstack/salt :3006.3	e9c7906b7a5c	idna@2.8	3.15	1
santisbon/evwatcher :latest	c4e994ca4540	idna@3.4	3.15	1
scrapinghub/splash :3.4.1	a5f89bc84606	idna@2.8 python-pip@9.0.1-2.3~ubuntu1.18.04.1	3.15 no fix listed	1
seafileltd/seafile-mc :9.0.10	6693911bcc40	idna@3.4 python-idna@2.8-1 python-pip@20.0.2-5ubuntu1.6	3.15 no fix listed no fix listed	1
seafileltd/seafile-mc :10.0.1	70628f29c663	idna@2.8 python-idna@2.8-1 python-pip@20.0.2-5ubuntu1.9	3.15 no fix listed no fix listed	1
seafileltd/seafile-mc :9.0.9	7ac833196f60	idna@2.8 python-idna@2.8-1 python-pip@20.0.2-5ubuntu1.6	3.15 no fix listed no fix listed	1
seafileltd/seafile-mc :11.0.12	d0c66e4621bd	idna@3.7 python-pip@22.0.2+dfsg-1ubuntu0.4	3.15 no fix listed	1
seafileltd/seafile-mc :8.0.7	ed0fcda5e6a9	idna@2.8 python-idna@2.8-1 python-pip@20.0.2-5ubuntu1.6	3.15 no fix listed no fix listed	1