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

Open the chart page →

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

Open the chart page →

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
shashkist/flask-contacts-app:latest581de1fd6084
werkzeug@3.0.4
3.1.5
4
dpage/pgadmin4:6.12781369df9994
werkzeug@2.0.3
3.1.5
3
paulkellerman/resultserver-app:1.0381eeccb0618
werkzeug@2.2.2
3.1.5
3
paulkellerman/webserver-app:latest5a37b74f61b9
werkzeug@2.2.2
3.1.5
3
amancevice/superset:0.35.212a0a9e66550
werkzeug@0.15.5
3.1.5
2
blakeblackshear/frigate:0.11.18330b0a265b8
werkzeug@2.2.2
3.1.5
2
cs3org/wopiserver:v9.4.202a9e78757b4
werkzeug@2.2.3
3.1.5
2
datawire/aes:1.14.48588eafe6862
werkzeug@1.0.1
3.1.5
2
devopsjourney1/mywebapp:latestbd1ec6838570
werkzeug@2.2.2
3.1.5
2
hjacobs/kube-ops-view:20.4.058221b57d4d2
werkzeug@1.0.1
3.1.5
2
istio/examples-bookinfo-productpage-v1:1.15.00a5eb4795952
werkzeug@0.14.1
3.1.5
2
istio/examples-bookinfo-productpage-v1:1.14.022a0410f35a8
werkzeug@0.14.1
3.1.5
2
kodekloud/examplevotingapp_vote:v13a856afb02a3
werkzeug@2.2.2
3.1.5
2
larribas/mlflow:1.9.105ccb0b46bfb
werkzeug@1.0.1
3.1.5
2
lncm/specter-desktop:v1.10.536eaa06f99f4
werkzeug@2.0.0
3.1.5
2
locustio/locust:2.32.2a0d4b88e42c1
werkzeug@3.1.2
3.1.5
2
nachomillangarcia/prometheus_aws_cost_exporter:lateste4ce056f2d6d
werkzeug@0.14.1
3.1.5
2
neilpeterson/azure-vote-front:v384062718347c
werkzeug@0.14.1
3.1.5
2
ngoduykhanh/powerdns-admin:v0.2.4ba36ab196d3d
werkzeug@2.0.2
3.1.5
2
omecproject/mcord-synchronizer:comac-1.0.0cfdb566dd949
werkzeug@0.14.1
3.1.5
2
opendatacube/ows:latest668cbb41473c
werkzeug@3.1.3
3.1.5
2
qichenxu4pd/pythonexample:1.0f3a8502bc21b
werkzeug@3.0.3
3.1.5
2
taigaio/taiga-protected:latestfd4568a97a59
werkzeug@0.15.6
3.1.5
2
ghcr.io/miguelndecarvalho/speedtest-exporter:v3.5.4f1064d49124c
werkzeug@2.3.6
3.1.5
2
quay.io/cephcsi/cephcsi:v3.17.10b62db8afc9b
werkzeug@2.0.3
3.1.5
2
quay.io/cephcsi/cephcsi:v3.7.2f7f8228f17cc
werkzeug@0.12.2
3.1.5
2
a10networks/acos-prometheus-exporter:latest8dc58d434d71
werkzeug@1.0.1
3.1.5
1
ahmetgrbzz/result_server:1.008e10f9c0f53
werkzeug@3.0.2
3.1.5
1
ahmetgrbzz/result_server:2.035c37ae2bafd
werkzeug@3.0.2
3.1.5
1
ahmetgrbzz/web_server:1.02e7fef69c29f
werkzeug@3.0.2
3.1.5
1
ahmetgrbzz/web_server:2.0f018bafd2b0c
werkzeug@3.0.2
3.1.5
1
aibrix/metadata-service:v0.7.063fb81a64377
werkzeug@3.0.6
3.1.5
1
airbyte/manifest-server:7.23.73b3a670af168
werkzeug@3.1.3
3.1.5
1
alakaganaguathoork/local-business:latest7eb27b0f4a5a
werkzeug@3.1.3
3.1.5
1
alerta/alerta-web:8.5.04786b9eaa606
werkzeug@2.0.2
3.1.5
1
alexvm6/pythonalex:latest89a05786879c
werkzeug@2.3.4
3.1.5
1
allegroai/clearml:2.0.0-613713ae38f7daf
werkzeug@3.1.3
3.1.5
1
amancevice/superset:0.28.1c8c04bfe3d66
werkzeug@0.14.1
3.1.5
1
amundsendev/amundsen-frontend:2.1.169e7915e61c1
werkzeug@1.0.1
3.1.5
1
amundsendev/amundsen-metadata:2.5.44d98eb21f5f9
werkzeug@0.15.3
3.1.5
1
amundsendev/amundsen-search:2.4.099dda9502c3e
werkzeug@0.15.3
3.1.5
1
anchore/anchore-engine:v0.10.0bde9eedf639d
werkzeug@0.16.0
3.1.5
1
anchore/anchore-engine:v0.7.1ed9b3badd17c
werkzeug@0.16.0
3.1.5
1
andreymileshin/kube-info:v0.1.0f7b300bc9e66
werkzeug@3.1.3
3.1.5
1
andreymileshin/zerossl-issuer:v1.0.0e0825acc9e48
werkzeug@3.1.3
3.1.5
1
apache/airflow:2.8.4-python3.964e58748b6b9
werkzeug@2.2.3
3.1.5
1
apache/airflow:2.10.2-python3.9ce90bdc3d2af
werkzeug@2.2.3
3.1.5
1
apache/airflow:2.8.1e5560ad0b86e
werkzeug@2.2.3
3.1.5
1
apache/superset:9cdaa280429ec297db16d56c94fd77b5d2aff107975ab033580d
werkzeug@2.0.3
3.1.5
1
apache/superset:4.0.1ab9467fd712c
werkzeug@3.0.1
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.