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[Snyk] Security upgrade nginx from 1.28.0-alpine to 1.29.4-alpine #36

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[Snyk] Security upgrade nginx from 1.28.0-alpine to 1.29.4-alpine #36

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@zongruxie4 zongruxie4 commented Jan 9, 2026

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Snyk has created this PR to fix 5 vulnerabilities in the dockerfile dependencies of this project.

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

Snyk changed the following file(s):

  • turms-admin/Dockerfile

We recommend upgrading to nginx:1.29.4-alpine, as this image has only 0 known vulnerabilities. To do this, merge this pull request, then verify your application still works as expected.

Vulnerabilities that will be fixed with an upgrade:

Issue Score
critical severity Expired Pointer Dereference
SNYK-ALPINE321-LIBXML2-13509047		   714  
critical severity Out-of-bounds Read
SNYK-ALPINE321-LIBXML2-13509051		   714  
high severity Out-of-bounds Write
SNYK-ALPINE321-LIBXML2-13509049		   614  
high severity Expired Pointer Dereference
SNYK-ALPINE321-LIBXML2-13509050		   614  
low severity Use After Free
SNYK-ALPINE321-CARES-14408844		   364  

Important

  • Check the changes in this PR to ensure they won't cause issues with your project.
  • Max score is 1000. Note that the real score may have changed since the PR was raised.
  • This PR was automatically created by Snyk using the credentials of a real user.

Note: You are seeing this because you or someone else with access to this repository has authorized Snyk to open fix PRs.

For more information:
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📚 Read about Snyk's upgrade logic

Learn how to fix vulnerabilities with free interactive lessons:

🦉 Out-of-bounds Read
🦉 Out-of-bounds Write
🦉 Use After Free

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gemini-code-assist bot commented Jan 9, 2026

Summary of Changes

Hello @zongruxie4, I'm Gemini Code Assist1! I'm currently reviewing this pull request and will post my feedback shortly. In the meantime, here's a summary to help you and other reviewers quickly get up to speed!

This pull request enhances the project's security by updating the nginx base image within the turms-admin Dockerfile. This essential upgrade mitigates several critical and high-severity vulnerabilities, ensuring the application's deployment environment is more robust and secure against known exploits.

Highlights

  • Security Upgrade: This pull request, automatically generated by Snyk, performs a security upgrade of the nginx base image.
  • Nginx Version Update: The nginx base image in turms-admin/Dockerfile has been updated from 1.28.0-alpine to 1.29.4-alpine.
  • Vulnerability Fixes: This upgrade addresses 5 identified vulnerabilities, including critical and high severity issues related to libxml2 (Expired Pointer Dereference, Out-of-bounds Read, Out-of-bounds Write) and cares (Use After Free).
  • Reduced Attack Surface: The new nginx:1.29.4-alpine image is reported to have 0 known vulnerabilities, significantly improving the security posture of the Docker image.

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Code Review

This pull request, automatically generated by Snyk, upgrades the nginx base image from 1.28.0-alpine to 1.29.4-alpine in the turms-admin/Dockerfile. This is a crucial security update that resolves 5 known vulnerabilities. The change is correct and addresses the security issue. I have added one suggestion to further improve security and build reproducibility by pinning the base image to its specific digest (@sha256:...) instead of a mutable tag. This is a recommended best practice for production Docker images.

turms-admin/Dockerfile
# Stage 1 : RUN
####################################################################
FROM nginx:1.28.0-alpine
FROM nginx:1.29.4-alpine
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medium

For improved security and build reproducibility, it's a best practice to pin the Docker base image to its digest (@sha256:...) instead of just a tag. Tags are mutable and can be updated, which might lead to pulling a different image unexpectedly in future builds. Pinning by digest ensures you are always using the exact same image, protecting against tag hijacking and ensuring deterministic builds.

You can find the digest for nginx:1.29.4-alpine and update the FROM instruction accordingly. For example:

FROM nginx:1.29.4-alpine@sha256:<some-digest-hash>

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