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[Snyk] Security upgrade nginx from 1.29.3-alpine to 1.29.5-alpine#212

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[Snyk] Security upgrade nginx from 1.29.3-alpine to 1.29.5-alpine#212
Dargon789 wants to merge 2 commits intomasterfrom
snyk-fix-37dc24e3a00fb819f94dcbe2d196b32c

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@Dargon789
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Snyk has created this PR to fix 4 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):

  • docker-examples/v6/reverse_proxy/nginx/relative_path/nginx/Dockerfile

We recommend upgrading to nginx:1.29.5-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
high severity Out-of-bounds Read
SNYK-ALPINE322-LIBPNG-15062355
  686  
high severity Out-of-bounds Read
SNYK-ALPINE322-LIBPNG-15062356
  686  
high severity CVE-2025-69421
SNYK-ALPINE322-OPENSSL-15121226
  686  
high severity CVE-2025-69421
SNYK-ALPINE322-OPENSSL-15121226
  686  
critical severity NULL Pointer Dereference
SNYK-ALPINE322-EXPAT-15199472
  436  

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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Learn how to fix vulnerabilities with free interactive lessons:

🦉 NULL Pointer Dereference
🦉 Out-of-bounds Read

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Summary of Changes

Hello @Dargon789, 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, automatically generated by Snyk, updates the nginx Docker base image to a newer, more secure version. The primary goal is to remediate several identified security vulnerabilities within the existing image, ensuring the application runs on a hardened foundation.

Highlights

  • Security Upgrade: Upgraded the nginx Docker base image from 1.29.3-alpine to 1.29.5-alpine to address multiple high and critical severity vulnerabilities.
  • Vulnerability Resolution: Fixed 4 vulnerabilities, including Out-of-bounds Read issues in libpng, CVE-2025-69421 in OpenSSL, and a NULL Pointer Dereference in Expat.
Changelog
  • docker-examples/v6/reverse_proxy/nginx/relative_path/nginx/Dockerfile
    • Updated the base image from nginx:1.29.3-alpine to nginx:1.29.5-alpine.
Activity
  • Snyk automatically created this pull request to propose a security upgrade.
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Code Review

This pull request, automatically generated by Snyk, correctly updates the nginx base image from version 1.29.3-alpine to 1.29.5-alpine to address several security vulnerabilities. The change is straightforward and necessary. I've added one suggestion to further enhance security and build reproducibility by pinning the base image to its content digest (SHA256 hash).

@@ -1,2 +1,2 @@
FROM nginx:1.29.3-alpine
FROM nginx:1.29.5-alpine
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medium

For improved security and build reproducibility, it's a best practice to pin Docker base images to their immutable digest (SHA256 hash) instead of a mutable tag. This prevents situations where the 1.29.5-alpine tag could be updated to point to a different image, potentially introducing unexpected changes or vulnerabilities.

You can find the digest for the image by running docker pull nginx:1.29.5-alpine and then docker images --digests nginx.

FROM nginx:1.29.5-alpine@sha256:<replace_with_actual_image_digest>

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snyk-io Bot commented Feb 11, 2026

Snyk checks have passed. No issues have been found so far.

Status Scanner Critical High Medium Low Total (0)
Open Source Security 0 0 0 0 0 issues

💻 Catch issues earlier using the plugins for VS Code, JetBrains IDEs, Visual Studio, and Eclipse.

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