StackRadar

CVE-2021-33503

High

Advisory

Published 1 Jun 2021In the index since 6 Sept 2026
Severity
High
worst across findings
CVSS
7.5
base score, highest
EPSS
0.033
88th percentile
CISA KEV
Not listed
no confirmed exploitation
Charts affected
159
of 17,781 indexed, latest versions
Container images
165
deployed by those charts
Fix available
3 of 3
affected packages

Catastrophic backtracking in URL authority parser when passed URL containing many @ characters

Carried by container images the latest versions of 159 of 17,781 indexed charts deploy, on 165 images.

Affected packageAffected versionsFixed inImages
urllib3pypi1.7.1, 1.25.2, 1.25.3, 1.25.7+9 more1.26.5148
python-pipdeb20.0.2-5ubuntu1.1, 20.0.2-5ubuntu1.5, 20.0.2-5ubuntu1.620.0.2-5ubuntu1.724
python-urllib3deb1.25.8-2ubuntu0.11.25.8-2ubuntu0.215
OSV records
GHSA-q2q7-5pp4-w6pgUBUNTU-CVE-2021-33503PYSEC-2021-108
Also known as
USN-5812-1

Charts affected

159 by stars
ChartLatestAffected imagesRadar Score
horcruxstakewise1.0.11 of 1See more

horcrux stakewise 1.0.1

1 of the 1 container images this version deploys carry CVE-2021-33503.

Container imageDigestPackageFixed in
stakewiselabs/bls-horcrux:v1.0.02afd0c0b34cb
urllib3@1.26.2
1.26.5

Open the chart page →

1,421
cost-analyzerstatcan1.82.21 of 9See more

cost-analyzer statcan 1.82.2

1 of the 9 container images this version deploys carry CVE-2021-33503.

Container imageDigestPackageFixed in
kiwigrid/k8s-sidecar:1.12.089739be9ff38
urllib3@1.25.11
1.26.5

Open the chart page →

16,506
datapusherstatcan1.0.01 of 1See more

datapusher statcan 1.0.0

1 of the 1 container images this version deploys carry CVE-2021-33503.

Container imageDigestPackageFixed in
keitaro/ckan-datapusher:0.0.175bf1a45f45c1
urllib3@1.25.10
1.26.5

Open the chart page →

3,044
prometheus-operatorstatcan0.2.21 of 7See more

prometheus-operator statcan 0.2.2

1 of the 7 container images this version deploys carry CVE-2021-33503.

Container imageDigestPackageFixed in
kiwigrid/k8s-sidecar:0.1.1517b98eecdf6d1
urllib3@1.25.9
1.26.5

Open the chart page →

12,237
gtmetrix-bqt3n1.0.01 of 1See more

gtmetrix-bq t3n 1.0.0

1 of the 1 container images this version deploys carry CVE-2021-33503.

Container imageDigestPackageFixed in
t3nde/gtmetrix-bq:0.2.0d2939e9a719b
urllib3@1.25.9
1.26.5

Open the chart page →

1,287
jenkinstnh2.7.11 of 2See more

jenkins tnh 2.7.1

1 of the 2 container images this version deploys carry CVE-2021-33503.

Container imageDigestPackageFixed in
kiwigrid/k8s-sidecar:0.1.193170069ff0976
urllib3@1.25.10
1.26.5

Open the chart page →

4,423
ambassadorwenerme6.9.51 of 2See more

ambassador wenerme 6.9.5

1 of the 2 container images this version deploys carry CVE-2021-33503.

Container imageDigestPackageFixed in
datawire/aes:1.14.48588eafe6862
urllib3@1.26.3
1.26.5

Open the chart page →

4,086
docker-hub-rate-limit-exporterwiremindVerified publisher0.3.01 of 1See more

docker-hub-rate-limit-exporter wiremind 0.3.0

1 of the 1 container images this version deploys carry CVE-2021-33503.

Container imageDigestPackageFixed in
viadee/docker-hub-rate-limit-exporter:version-1.52e27e3b3ee56
urllib3@1.26.3
1.26.5

Open the chart page →

1,843
powerdnsadminwitcom-gmbh0.3.41 of 1See more

powerdnsadmin witcom-gmbh 0.3.4

1 of the 1 container images this version deploys carry CVE-2021-33503.

Container imageDigestPackageFixed in
ngoduykhanh/powerdns-admin:v0.2.4ba36ab196d3d
urllib3@1.25.11
1.26.5

Open the chart page →

2,643

Container images carrying it

165 by charts deploying them

A fixed version is listed for 3 of the 3 affected packages.

Container imageDigestPackageFixed inUsed by
argoproj/argocd:v1.8.1830e86cacefd
urllib3@1.25.11
1.26.5
3
cloudve/cloudlaunch-server:latest4a3d7fae90bb
python-pip@20.0.2-5ubuntu1.6
20.0.2-5ubuntu1.7
3
dnationcloud/kubernetes-jsonnet-translator:2.0.178fed4f3c130
urllib3@1.25.11
1.26.5
3
kiwigrid/k8s-sidecar:0.1.193170069ff0976
urllib3@1.25.10
1.26.5
3
kiwigrid/k8s-sidecar:0.1.1517b98eecdf6d1
urllib3@1.25.9
1.26.5
3
amancevice/superset:0.35.212a0a9e66550
urllib3@1.25.3
1.26.5
2
architectminds/aws-kubectl:1.19735e59a1085
urllib3@1.25.3
1.26.5
2
datawire/aes:1.14.48588eafe6862
urllib3@1.26.3
1.26.5
2
larribas/mlflow:1.9.105ccb0b46bfb
urllib3@1.25.9
1.26.5
2
neuvector/manager:3.2.1f1b7d666eae0
urllib3@1.25.3
1.26.5
2
ngoduykhanh/powerdns-admin:v0.2.4ba36ab196d3d
urllib3@1.25.11
1.26.5
2
omecproject/kubernetes-synchronizer:comac-1.0.07c17a7b1d1ef
urllib3@1.25.3
1.26.5
2
sealife/fritzbox-exporter:1.0f5cc2f0f4c9b
urllib3@1.26.2
1.26.5
2
smartedge/generic-multi-access-network-virtualization:1.04cd63c22ce36
python-pip@20.0.2-5ubuntu1.6
20.0.2-5ubuntu1.7
2
weblate/weblate:4.2.2-169c160d37a3c
urllib3@1.25.10
1.26.5
2
wurstmeister/zookeeper:latest7a7fd44a7210
urllib3@1.7.1
1.26.5
2
a10networks/acos-prometheus-exporter:latest8dc58d434d71
urllib3@1.25.9
1.26.5
1
acockburn/appdaemon:4.0.83a93281d7e94
urllib3@1.26.4
1.26.5
1
adwerx/github-actions-runner:2.276.1-20.04-1840d2b078682
python-urllib3@1.25.8-2ubuntu0.1
urllib3@1.25.8
1.25.8-2ubuntu0.2
1.26.5
1
afrank/mozalert-controller:latestd463c37b08d7
urllib3@1.25.10
1.26.5
1
airsonicadvanced/airsonic-advanced:latestf7cbafac2806
python-urllib3@1.25.8-2ubuntu0.1
urllib3@1.25.8
1.25.8-2ubuntu0.2
1.26.5
1
amundsendev/amundsen-metadata:2.5.44d98eb21f5f9
urllib3@1.25.10
1.26.5
1
anchore/anchore-engine:v0.10.0bde9eedf639d
urllib3@1.25.9
1.26.5
1
anchore/anchore-engine:v0.7.1ed9b3badd17c
urllib3@1.25.8
1.26.5
1
apachepulsar/pulsar:2.10.03b262ab7a7d9
python-pip@20.0.2-5ubuntu1.6
20.0.2-5ubuntu1.7
1
apachepulsar/pulsar:2.6.14db6ff0b4045
urllib3@1.25.10
1.26.5
1
apsl/thumbor:6.7.051e2de5c2c70
urllib3@1.25.7
1.26.5
1
assistiot/video_augmentation:runner-cpu-lateste5ae539ce2cb
urllib3@1.25.8
1.26.5
1
bbvalabs/sensitive-data:1.0.13ea299ae63c0
urllib3@1.26.4
1.26.5
1
bicarus/elrond-rosetta:v1.3.50.0b1dab0721e1c
python-pip@20.0.2-5ubuntu1.6
20.0.2-5ubuntu1.7
1
billimek/prometheus-uptimerobot-exporter:0.0.1f14ccd7aad0e
urllib3@1.25.9
1.26.5
1
blakeblackshear/frigate:0.10.0-amd64ae269270ad9e
python-pip@20.0.2-5ubuntu1.6
20.0.2-5ubuntu1.7
1
bootc/puppetboard:1.1.0f1383295e7be
urllib3@1.25.8
1.26.5
1
browserless/chrome:1.48.0-chrome-stablec81ae5585b47
python-urllib3@1.25.8-2ubuntu0.1
urllib3@1.25.8
1.25.8-2ubuntu0.2
1.26.5
1
camptocamp/ekorre:0.1.035c91d5fda04
urllib3@1.25.8
1.26.5
1
chetangautamm/repo:sipp.v3e7f7049e1544
python-urllib3@1.25.8-2ubuntu0.1
urllib3@1.25.8
1.25.8-2ubuntu0.2
1.26.5
1
cleveritcz/opencve:1.5.0c75c1636e0b7
urllib3@1.25.11
1.26.5
1
cloudve/janis-terminal:latestaf56e77ca587
urllib3@1.25.9
1.26.5
1
cloudve/ttyd:latestd79c1c5881c0
urllib3@1.25.8
1.26.5
1
codaprotocol/buildkite-exporter:0.2.137c68e67a401
urllib3@1.26.3
1.26.5
1
codaprotocol/coda-user-agent:0.1.54ba4dd3a041f
urllib3@1.25.9
1.26.5
1
confluentinc/cp-enterprise-control-center:6.1.0f2975d507a2a
urllib3@1.26.3
1.26.5
1
confluentinc/cp-enterprise-kafka:6.1.08f1544df1f48
urllib3@1.26.3
1.26.5
1
confluentinc/cp-kafka-connect:6.1.04bc70a83ca6f
urllib3@1.26.3
1.26.5
1
confluentinc/cp-kafka-rest:6.1.0b0b7aa26254a
urllib3@1.26.3
1.26.5
1
confluentinc/cp-ksqldb-server:6.1.0ee403d5b9090
urllib3@1.26.3
1.26.5
1
confluentinc/cp-schema-registry:6.1.0b651d4b6185a
urllib3@1.26.3
1.26.5
1
confluentinc/cp-zookeeper:6.1.078c190f4472c
urllib3@1.26.3
1.26.5
1
countly/countly-server:25.05.4e3c238248f99
python-urllib3@1.25.8-2ubuntu0.1
urllib3@1.25.8
1.25.8-2ubuntu0.2
1.26.5
1
craigwillis/c2metadata-bd:latestae317d7e4724
urllib3@1.26.1
1.26.5
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.