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🧹 chore: Add unit-test for header injection#3470

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ReneWerner87 merged 1 commit intomainfrom
codex/find-and-fix-security-vulnerability
May 23, 2025
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🧹 chore: Add unit-test for header injection#3470
ReneWerner87 merged 1 commit intomainfrom
codex/find-and-fix-security-vulnerability

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@gaby
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@gaby gaby commented May 23, 2025 •
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Summary

  • rely on fasthttp to sanitize header newlines
  • add test verifying newline characters are replaced with spaces

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coderabbitai bot commented May 23, 2025 •
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Walkthrough

A new test function was introduced in the ctx_test.go file to verify that response header values containing carriage return and newline characters are sanitized by replacing them with spaces. The test checks that the header is correctly set after sanitization.

Changes

File(s) Change Summary
ctx_test.go Added Test_Ctx_Set_SanitizeHeaderValue to test header value sanitization for carriage returns and newlines.

Suggested reviewers

  • sixcolors
  • efectn
  • ReneWerner87

Poem

A header set with care and might,
Sanitized to keep things right.
No sneaky newlines, not a trace,
Just spaces now in every place.
With tests in tow, we hop along—
Clean headers make the code more strong!
🐇✨

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📥 Commits

Reviewing files that changed from the base of the PR and between aae8892 and 653a089.

📒 Files selected for processing (1)
  • ctx_test.go (1 hunks)
⏰ Context from checks skipped due to timeout of 90000ms (4)
  • GitHub Check: unit (1.24.x, windows-latest)
  • GitHub Check: unit (1.23.x, windows-latest)
  • GitHub Check: repeated
  • GitHub Check: Compare
🔇 Additional comments (1)
ctx_test.go (1)

5218-5228: Excellent security test addition!

This test effectively validates the header injection prevention mechanism by verifying that carriage return and newline characters (\r\n) in header values are properly sanitized (replaced with spaces). This is crucial for preventing HTTP header injection attacks where malicious actors could inject arbitrary headers through CRLF injection.

The test is well-implemented:

  • Follows Go testing conventions with t.Parallel()
  • Has a descriptive name that clearly indicates its purpose
  • Uses proper assertions to verify the expected sanitization behavior
  • Complements the existing Test_Ctx_Set_Splitter test by providing more specific verification of the replacement behavior

This addition significantly strengthens the security test coverage of the header handling functionality.

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@gaby gaby changed the title Fix header newline injection 🧹 chore: Add unit-test for header injection May 23, 2025
@gaby gaby added this to v3 May 23, 2025
@gaby gaby moved this to In Progress in v3 May 23, 2025
@gaby gaby added this to the v3 milestone May 23, 2025
@gaby gaby marked this pull request as ready for review May 23, 2025 11:33
@gaby gaby requested a review from a team as a code owner May 23, 2025 11:33
@gaby gaby requested review from ReneWerner87, efectn and sixcolors May 23, 2025 11:33
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codecov bot commented May 23, 2025 •
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Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 84.45%. Comparing base (18ed68b) to head (653a089).
Report is 2 commits behind head on main.

Additional details and impacted files 
@@           Coverage Diff           @@
##             main    #3470   +/-   ##
=======================================
  Coverage   84.45%   84.45%           
=======================================
  Files         120      120           
  Lines       12157    12157           
=======================================
  Hits        10267    10267           
  Misses       1462     1462           
  Partials      428      428
Flag Coverage Δ
unittests 84.45% <ø> (ø)

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@ReneWerner87 ReneWerner87 merged commit 895abd5 into main May 23, 2025
19 checks passed
@github-project-automation github-project-automation bot moved this from In Progress to Done in v3 May 23, 2025
@gaby gaby deleted the codex/find-and-fix-security-vulnerability branch June 18, 2025 02:08
@yashuatla yashuatla mentioned this pull request Jun 25, 2025
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Reviewers

@ReneWerner87 ReneWerner87 ReneWerner87 approved these changes

@sixcolors sixcolors Awaiting requested review from sixcolors sixcolors is a code owner automatically assigned from gofiber/maintainers

@efectn efectn Awaiting requested review from efectn efectn is a code owner automatically assigned from gofiber/maintainers

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codex 🧹 Updates v3

Projects

v3
Status: Done

Milestone

v3.0.0

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2 participants

@gaby @ReneWerner87