CVE-2021-39143

lowpriority · track · 28EPSS 0.003 · 28 %ileEUUS

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

0.34% (28th) EPSS

CVSS 3.6 · low

Is it mine?

6 products

Check your exposure

Who says so?

3 sources

cnnvd · enisa_euvd · nvd

EPSS · scored 2026-10-27

Spinnaker is an open source, multi-cloud continuous delivery platform. A path traversal vulnerability was discovered in uses of TAR files by AppEngine for deployments. This uses a utility to extract files locally for deployment without validating the paths in that deployment don't override system files. This would allow an attacker to override files on the container, POTENTIALLY introducing a MITM type attack vector by replacing libraries or injecting wrapper files. Users are advised to update as soon as possible. For users unable to update disable Google AppEngine deployments and/or disable artifacts that provide TARs.

cvss

Technical severity, 0–10. One row per scoring source.

7.1

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · low–high · 3.6–7.1

v2.03.6lowAV:L/AC:L/Au:N/C:P/I:P/A:Nprimary · NVD / NIST USexploitability 3.9 · impact 4.9

v3.17.1highCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:Nprimary · NVD / NIST USexploitability 1.8 · impact 5.2

v3.16.6mediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:Hsecondary · ENISA EU

v3.16.6mediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:Hsecondary · security-advisories@github.comexploitability 1.8 · impact 4.7

v3.16.5mediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N/E:Usecondary · CVSS-BT (t0sche)

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-22USprimary

affected products (6)

Products and version ranges known to be affected.

spinnaker spinnaker≤ < 1.24.7enisa_euvdEU
spinnaker spinnaker1.25.0, → 1.25.7enisa_euvdEU
spinnaker spinnaker1.26.0, → 1.26.7enisa_euvdEU
linuxfoundation spinnaker< 1.24.7nvdUScpe:2.3:a:linuxfoundation:spinnaker:*:*:*:*:*:*:*:*
linuxfoundation spinnaker1.25.0 → 1.25.7nvdUScpe:2.3:a:linuxfoundation:spinnaker:*:*:*:*:*:*:*:*
linuxfoundation spinnaker1.26.0 → 1.26.7nvdUScpe:2.3:a:linuxfoundation:spinnaker:*:*:*:*:*:*:*:*

also known as (2)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd nvd NVD CVE.org MITRE

published 2022-01-04modified 2026-06-17

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+12523 more

references (5)

External citations — patches, advisories, analysis.

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