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[Snyk] Security upgrade node from 14.20.0-slim to 14.21.0-slim

Keeping your Docker base image up-to-date means you’ll benefit from security fixes in the latest version of your chosen image.

Changes included in this Merge Request

  • Dockerfile

We recommend upgrading to node:14.21.0-slim, as this image has only 56 known vulnerabilities. To do this, merge this pull request, then verify your application still works as expected.

Some of the most important vulnerabilities in your base image include:

Severity Priority Score / 1000 Issue Exploit Maturity
critical severity 500 Buffer Overflow
SNYK-DEBIAN10-GLIBC-2340915
No Known Exploit
critical severity 500 Buffer Overflow
SNYK-DEBIAN10-GLIBC-2340923
No Known Exploit
critical severity 500 Out-of-bounds Write
SNYK-DEBIAN10-ZLIB-2976149
No Known Exploit
medium severity 514 HTTP Request Smuggling
SNYK-UPSTREAM-NODE-3035795
No Known Exploit
high severity 686 DNS Rebinding
SNYK-UPSTREAM-NODE-3105822
No Known Exploit

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