StackRadar

CVE-2021-40978

High

Advisory

Published 7 Oct 2021In the index since 9 Sept 2026
Severity
High
worst across findings
CVSS
7.5
base score, highest
EPSS
0.151
97th percentile
CISA KEV
Not listed
no confirmed exploitation
Charts affected
1
of 17,781 indexed, latest versions
Container images
1
deployed by those charts
Fix available
1 of 1
affected package

Directory traversal in mkdocs

Carried by container images the latest versions of 1 of 17,781 indexed charts deploy, on 1 image.

Affected packageAffected versionsFixed inImages
mkdocspypi1.2.21.2.31
OSV records
GHSA-qh9q-34h6-hcv9
Also known as
PYSEC-2021-878

Charts affected

1 by stars
ChartLatestAffected imagesRadar Score
backstageirembo-backstage-helmVerified publisher1.0.51 of 3See more

backstage irembo-backstage-helm 1.0.5

1 of the 3 container images this version deploys carry CVE-2021-40978.

Container imageDigestPackageFixed in
roadiehq/community-backstage-image:latestef355bf5b639
mkdocs@1.2.2
1.2.3

Open the chart page →

7,232

Container images carrying it

1 by charts deploying them

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

Container imageDigestPackageFixed inUsed by
roadiehq/community-backstage-image:latestef355bf5b639
mkdocs@1.2.2
1.2.3
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.