StackRadar

CVE-2026-21860

Medium

Advisory

Published 8 Jan 2026In the index since 5 Sept 2026
Severity
Medium
worst across findings
CVSS
5.3
base score, highest
EPSS
0.005
40th percentile
CISA KEV
Not listed
no confirmed exploitation
Charts affected
307
of 17,781 indexed, latest versions
Container images
303
deployed by those charts
Fix available
1 of 1
affected package

Werkzeug safe_join() allows Windows special device names with compound extensions

Carried by container images the latest versions of 307 of 17,781 indexed charts deploy, on 303 images.

Affected packageAffected versionsFixed inImages
werkzeugpypi0.9.1, 0.11.15, 0.12.2, 0.13+33 more3.1.5303
OSV records
GHSA-87hc-h4r5-73f7
Also known as
PYSEC-2026-2044

Charts affected

307 by stars
ChartLatestAffected imagesRadar Score
ambassadorwenerme6.9.51 of 2See more

ambassador wenerme 6.9.5

1 of the 2 container images this version deploys carry CVE-2026-21860.

Container imageDigestPackageFixed in
datawire/aes:1.14.48588eafe6862
werkzeug@1.0.1
3.1.5

Open the chart page →

4,086
emissary-ingresswenerme8.12.21 of 2See more

emissary-ingress wenerme 8.12.2

1 of the 2 container images this version deploys carry CVE-2026-21860.

Container imageDigestPackageFixed in
datawire/emissary:3.12.21f67a1292d2a
werkzeug@3.0.3
3.1.5

Open the chart page →

10,843
ceph-csi-cephfswikimedia0.1.81 of 5See more

ceph-csi-cephfs wikimedia 0.1.8

1 of the 5 container images this version deploys carry CVE-2026-21860.

Container imageDigestPackageFixed in
quay.io/cephcsi/cephcsi:v3.7.2f7f8228f17cc
werkzeug@0.12.2
3.1.5

Open the chart page →

10,285
ceph-csi-rbdwikimedia0.1.131 of 6See more

ceph-csi-rbd wikimedia 0.1.13

1 of the 6 container images this version deploys carry CVE-2026-21860.

Container imageDigestPackageFixed in
quay.io/cephcsi/cephcsi:v3.7.2f7f8228f17cc
werkzeug@0.12.2
3.1.5

Open the chart page →

11,784
powerdnsadminwitcom-gmbh0.3.41 of 1See more

powerdnsadmin witcom-gmbh 0.3.4

1 of the 1 container images this version deploys carry CVE-2026-21860.

Container imageDigestPackageFixed in
ngoduykhanh/powerdns-admin:v0.2.4ba36ab196d3d
werkzeug@2.0.2
3.1.5

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2,643
xkopsxkops0.1.01 of 5See more

xkops xkops 0.1.0

1 of the 5 container images this version deploys carry CVE-2026-21860.

Container imageDigestPackageFixed in
hamzaarshad10/querybackend:1.6.22c1c3b86a8e7
werkzeug@3.0.4
3.1.5

Open the chart page →

13,677
zerossl-cert-managerzerossl-cert-manager0.1.01 of 2See more

zerossl-cert-manager zerossl-cert-manager 0.1.0

1 of the 2 container images this version deploys carry CVE-2026-21860.

Container imageDigestPackageFixed in
andreymileshin/zerossl-issuer:v1.0.0e0825acc9e48
werkzeug@3.1.3
3.1.5

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570

Container images carrying it

303 by charts deploying them

A fixed version is listed for 1 of the 1 affected package.

Container imageDigestPackageFixed inUsed by
opencsghq/agenticflow:ee-v0.6-52f03fead54db
werkzeug@3.1.3
3.1.5
1
opendatacube/explorer:latest120457ffcd69
werkzeug@3.1.3
3.1.5
1
opendatacube/restcube:latest91870111837c
werkzeug@0.15.4
3.1.5
1
opendatacube/wms:latest1b90cdf68831
werkzeug@0.15.4
3.1.5
1
opendatacube/wps:latest80df355a660b
werkzeug@3.1.3
3.1.5
1
openstackhelm/keystone:wallaby-ubuntu_focale07d75953d2e
werkzeug@1.0.1
3.1.5
1
openwhisk/kafkaprovider:2.1.063dc3d2a0904
werkzeug@1.0.1
3.1.5
1
oxheadalpha/tezos-k8s-utils:5.3.4d9faed45bf1c
werkzeug@2.0.2
3.1.5
1
pococze/python-hello-elos:2.0.07a1aab425e51
werkzeug@3.0.3
3.1.5
1
prompve/prometheus-pve-exporter:3.4.2fcf041f0c24d
werkzeug@3.0.3
3.1.5
1
prompve/prometheus-pve-exporter:2.0.1ff6749eb03b0
werkzeug@1.0.1
3.1.5
1
pschiffe/pdns-admin:0.4.137ebba8c2b8f
werkzeug@2.1.2
3.1.5
1
pysga1996/python-redis-web:latestfdeec30ad482
werkzeug@2.2.3
3.1.5
1
rdavidoff/twitch-channel-points-miner-v2:1.8.67ae4c5135771
werkzeug@2.3.7
3.1.5
1
redash/redash:25.8.000d813437db5
werkzeug@2.3.8
3.1.5
1
redash/redash:10.0.0.b503639392753c0376
werkzeug@0.16.1
3.1.5
1
redash/redash:26.3.0c5c9148f5c38
werkzeug@2.3.8
3.1.5
1
redislabs/redisinsight:1.14.0b03ab1426d0d
werkzeug@2.2.3
3.1.5
1
reportportal/service-auto-analyzer:5.7.295ada4a216ce
werkzeug@2.1.2
3.1.5
1
reportportal/service-metrics-gatherer:1.1.202a0e6dc11161
werkzeug@2.1.2
3.1.5
1
robotshop/rs-payment:latest774b52c6180d
werkzeug@2.0.1
3.1.5
1
rook/ceph:v1.20.72f970c425617
werkzeug@2.0.3
3.1.5
1
rook/ceph:v1.19.2944a1dd70496
werkzeug@2.0.3
3.1.5
1
samueldg/snappass:latest3987195edbe6
werkzeug@0.16.0
3.1.5
1
sashafefler/spacecapybara_app:latestf96d7804c0ca
werkzeug@2.2.2
3.1.5
1
searx/searx:1.0.0-211-968b28993dbb3a6d9419
werkzeug@2.0.1
3.1.5
1
seldonio/locust-core:0.81d0da98a2d76
werkzeug@0.15.4
3.1.5
1
seldonio/seldon-request-logger:1.11.24e985d2006a8
werkzeug@2.0.2
3.1.5
1
signalen/classification:ad60447d1733473e30ab0a3ba53d58141cc1d2509496ae672877
werkzeug@1.0.1
3.1.5
1
sirrend/helmup-notifications-service:0.1.3997866417011
werkzeug@3.0.3
3.1.5
1
statcan/ckan:2.93921305425b8
werkzeug@1.0.0
3.1.5
1
svtechnmaa/svtech_csv:v1.0.1b9d7ecf8de24
werkzeug@2.0.3
3.1.5
1
svtechnmaa/svtech_rundeck:v1.2.26e368ace0977
werkzeug@2.0.3
3.1.5
1
svtechnmaa/svtech_rundeck_option_provider:v1.1.1674fad30a51f
werkzeug@2.0.3
3.1.5
1
tachyongroup/mlflow-deployment-controller:mlflow-controller-0.1.87e79b9000856
werkzeug@2.2.3
3.1.5
1
tachyongroup/mlflow-deployment-controller-ui:mlflow-controller-0.1.8f4f7fabe1037
werkzeug@2.2.3
3.1.5
1
taemon1337/image-api:0.0.1247bc1dc4f07
werkzeug@2.0.3
3.1.5
1
taigaio/taiga-protected:6.4.036318831b3e7
werkzeug@0.15.6
3.1.5
1
teknas09/bird-pod:latest12a1fa85c4aa
werkzeug@3.0.2
3.1.5
1
tensorflow/tensorflow:1.6.0-devel1e3172090703
werkzeug@0.14.1
3.1.5
1
thecloudspark/app-vote:1.0c7da7417a86a
werkzeug@3.0.3
3.1.5
1
thongngo3301/stakefish:latesta341af5976e3
werkzeug@2.2.3
3.1.5
1
trungkien210493/icinga2-report:v1.7.12cc8c3763c4c
werkzeug@0.12.2
3.1.5
1
vcnngr/telegram-login:latest1a849a997b6d
werkzeug@3.1.3
3.1.5
1
vcnngr/telegram-rebot:latest30f1f05e57a6
werkzeug@3.1.3
3.1.5
1
voltha/voltha-cli:1.6.0c4e41e92f046
werkzeug@0.14.1
3.1.5
1
voltha/voltha-netconf:1.6.037f80524c207
werkzeug@0.14.1
3.1.5
1
voltha/voltha-ofagent:1.6.09ee8c1f4428c
werkzeug@0.14.1
3.1.5
1
voltha/voltha-tester:1.7.0655c3048a602
werkzeug@0.15.4
3.1.5
1
voltha/voltha-voltha:1.6.0ff596b62de59
werkzeug@0.14.1
3.1.5
1

syft 1.42.1 · advisories as of 14 Sept 2026

Corrections: contact@stackradar.io

Catalogue: Artifact Hub · Advisories: OSV · Exploitation: FIRST EPSS, CISA KEV.