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Fix/x forwarded for rate limit bypass#2138

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anshika1179 wants to merge 5 commits into
JhaSourav07:mainfrom
anshika1179:fix/x-forwarded-for-rate-limit-bypass
Open

Fix/x forwarded for rate limit bypass#2138
anshika1179 wants to merge 5 commits into
JhaSourav07:mainfrom
anshika1179:fix/x-forwarded-for-rate-limit-bypass

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@anshika1179
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Description

Fixes #1975

This PR addresses the rate-limiting bypass vulnerability caused by trusting user-controlled X-Forwarded-For and X-Real-IP headers.

Modifications implemented:

  • Centralized Secure IP Resolution: Created utils/getClientIp.ts to securely resolve true client IPs.
  • Trusted Proxy Verification: Implemented standard CIDR range and explicit trusted proxy list checking in utils/trustedProxy.ts. It parses X-Forwarded-For from right to left, stopping at the first untrusted intermediate proxy.
  • Spoof Attempt Detection: Automatically detects and securely logs header spoofing attempts (e.g., when the client-supplied IP chain contradicts secure properties).
  • Hardened Middleware & Endpoints: Centralized IP extraction in the middleware rate limiter and the /api/track-user endpoint.
  • Comprehensive Test Suite: Added utils/getClientIp.test.ts unit tests and fully updated middleware.test.ts to align with the trusted proxy model.

Pillar

  • 🎨 Pillar 1 — New Theme Design
  • 📐 Pillar 2 — Geometric SVG Improvement
  • 🕐 Pillar 3 — Timezone Logic Optimization
  • 🛠️ Other (Bug fix, refactoring, docs)

Visual Preview

(N/A - Security backend/middleware hardening change. Complete test suite verification has been performed locally).

Checklist before requesting a review:

  • I have read the CONTRIBUTING.md file.
  • I have tested these changes locally (localhost:3000/api/streak?user=YOUR_USERNAME).
  • I have run npm run format and npm run lint locally and resolved all errors (CI will fail otherwise).
  • My commits follow the Conventional Commits format (e.g., feat(themes): ..., fix(calculate): ...).
  • I have updated README.md if I added a new theme or URL parameter.
  • I have started the repo.
  • I have made sure that i have only one commit to merge in this PR.
  • The SVG output matches the CommitPulse "premium quality" aesthetic standard (no raw elements, smooth animations, correct fonts).
  • (Recommended) I joined the CommitPulse Discord community for contributor discussions, mentorship, and faster PR support.

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vercel Bot commented May 31, 2026

@anshika1179 is attempting to deploy a commit to the jhasourav07's projects Team on Vercel.

A member of the Team first needs to authorize it.

@github-actions github-actions Bot added the status:blocked This PR is blocked due to a failing CI check. label May 31, 2026
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🚨 Hey @anshika1179, the CI Pipeline is failing on this PR and it has been marked as status:blocked.

Please fix the issues before this can be reviewed. Here's how:

1. Run checks locally before pushing:

npm run format:check   # Check Prettier formatting
npm run lint           # Run ESLint
npm run typecheck      # TypeScript type check
npm run test           # Run unit tests (Vitest)
npm run build          # Verify production build passes

2. Auto-fix common issues:

npm run format         # Auto-fix formatting with Prettier
npm run lint -- --fix  # Auto-fix lint errors where possible

3. Check the full failure log here:
👉 View CI Run

Once you push a fix and the CI passes, the status:blocked label will be removed automatically. 💪

@github-actions github-actions Bot removed the status:blocked This PR is blocked due to a failing CI check. label May 31, 2026
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@Aamod007 Aamod007 left a comment

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Thanks for the PR. The code changes for trusted proxy verification look solid and address a critical rate-limit bypass vector.

However, this PR includes massive unintended churn in \package-lock.json\ (2783 additions, 645 deletions). Our \package-lock.json\ is highly volatile and we strictly avoid accidental commits of reformatted lock files.

Please revert the \package-lock.json\ file so that only the source code files are included in this PR. Once that is done, I will be happy to approve it!

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⚠️ Hey @anshika1179, this PR has merge conflicts with the main branch.

Please pull the latest changes and resolve the conflicts so we can review it!

git fetch origin
git rebase origin/main
# resolve any conflicts, then:
git push --force-with-lease

Once resolved, the needs-rebase label will be removed automatically on the next check. 🙌

@github-actions github-actions Bot added the needs-rebase This PR has merge conflicts and needs a rebase. label May 31, 2026
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⚠️ Hey @anshika1179, this PR has merge conflicts with the main branch.

Please pull the latest changes and resolve the conflicts so we can review it!

git fetch origin
git rebase origin/main
# resolve any conflicts, then:
git push --force-with-lease

Once resolved, the needs-rebase label will be removed automatically on the next check. 🙌

22 similar comments
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⚠️ Hey @anshika1179, this PR has merge conflicts with the main branch.

Please pull the latest changes and resolve the conflicts so we can review it!

git fetch origin
git rebase origin/main
# resolve any conflicts, then:
git push --force-with-lease

Once resolved, the needs-rebase label will be removed automatically on the next check. 🙌

@github-actions
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⚠️ Hey @anshika1179, this PR has merge conflicts with the main branch.

Please pull the latest changes and resolve the conflicts so we can review it!

git fetch origin
git rebase origin/main
# resolve any conflicts, then:
git push --force-with-lease

Once resolved, the needs-rebase label will be removed automatically on the next check. 🙌

@github-actions
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⚠️ Hey @anshika1179, this PR has merge conflicts with the main branch.

Please pull the latest changes and resolve the conflicts so we can review it!

git fetch origin
git rebase origin/main
# resolve any conflicts, then:
git push --force-with-lease

Once resolved, the needs-rebase label will be removed automatically on the next check. 🙌

@github-actions
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⚠️ Hey @anshika1179, this PR has merge conflicts with the main branch.

Please pull the latest changes and resolve the conflicts so we can review it!

git fetch origin
git rebase origin/main
# resolve any conflicts, then:
git push --force-with-lease

Once resolved, the needs-rebase label will be removed automatically on the next check. 🙌

@github-actions
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⚠️ Hey @anshika1179, this PR has merge conflicts with the main branch.

Please pull the latest changes and resolve the conflicts so we can review it!

git fetch origin
git rebase origin/main
# resolve any conflicts, then:
git push --force-with-lease

Once resolved, the needs-rebase label will be removed automatically on the next check. 🙌

@github-actions
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⚠️ Hey @anshika1179, this PR has merge conflicts with the main branch.

Please pull the latest changes and resolve the conflicts so we can review it!

git fetch origin
git rebase origin/main
# resolve any conflicts, then:
git push --force-with-lease

Once resolved, the needs-rebase label will be removed automatically on the next check. 🙌

@github-actions
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⚠️ Hey @anshika1179, this PR has merge conflicts with the main branch.

Please pull the latest changes and resolve the conflicts so we can review it!

git fetch origin
git rebase origin/main
# resolve any conflicts, then:
git push --force-with-lease

Once resolved, the needs-rebase label will be removed automatically on the next check. 🙌

@github-actions
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⚠️ Hey @anshika1179, this PR has merge conflicts with the main branch.

Please pull the latest changes and resolve the conflicts so we can review it!

git fetch origin
git rebase origin/main
# resolve any conflicts, then:
git push --force-with-lease

Once resolved, the needs-rebase label will be removed automatically on the next check. 🙌

@github-actions
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⚠️ Hey @anshika1179, this PR has merge conflicts with the main branch.

Please pull the latest changes and resolve the conflicts so we can review it!

git fetch origin
git rebase origin/main
# resolve any conflicts, then:
git push --force-with-lease

Once resolved, the needs-rebase label will be removed automatically on the next check. 🙌

@github-actions
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⚠️ Hey @anshika1179, this PR has merge conflicts with the main branch.

Please pull the latest changes and resolve the conflicts so we can review it!

git fetch origin
git rebase origin/main
# resolve any conflicts, then:
git push --force-with-lease

Once resolved, the needs-rebase label will be removed automatically on the next check. 🙌

@github-actions
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⚠️ Hey @anshika1179, this PR has merge conflicts with the main branch.

Please pull the latest changes and resolve the conflicts so we can review it!

git fetch origin
git rebase origin/main
# resolve any conflicts, then:
git push --force-with-lease

Once resolved, the needs-rebase label will be removed automatically on the next check. 🙌

@github-actions
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⚠️ Hey @anshika1179, this PR has merge conflicts with the main branch.

Please pull the latest changes and resolve the conflicts so we can review it!

git fetch origin
git rebase origin/main
# resolve any conflicts, then:
git push --force-with-lease

Once resolved, the needs-rebase label will be removed automatically on the next check. 🙌

@github-actions
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⚠️ Hey @anshika1179, this PR has merge conflicts with the main branch.

Please pull the latest changes and resolve the conflicts so we can review it!

git fetch origin
git rebase origin/main
# resolve any conflicts, then:
git push --force-with-lease

Once resolved, the needs-rebase label will be removed automatically on the next check. 🙌

@github-actions
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⚠️ Hey @anshika1179, this PR has merge conflicts with the main branch.

Please pull the latest changes and resolve the conflicts so we can review it!

git fetch origin
git rebase origin/main
# resolve any conflicts, then:
git push --force-with-lease

Once resolved, the needs-rebase label will be removed automatically on the next check. 🙌

@github-actions
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⚠️ Hey @anshika1179, this PR has merge conflicts with the main branch.

Please pull the latest changes and resolve the conflicts so we can review it!

git fetch origin
git rebase origin/main
# resolve any conflicts, then:
git push --force-with-lease

Once resolved, the needs-rebase label will be removed automatically on the next check. 🙌

@github-actions
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⚠️ Hey @anshika1179, this PR has merge conflicts with the main branch.

Please pull the latest changes and resolve the conflicts so we can review it!

git fetch origin
git rebase origin/main
# resolve any conflicts, then:
git push --force-with-lease

Once resolved, the needs-rebase label will be removed automatically on the next check. 🙌

@github-actions
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⚠️ Hey @anshika1179, this PR has merge conflicts with the main branch.

Please pull the latest changes and resolve the conflicts so we can review it!

git fetch origin
git rebase origin/main
# resolve any conflicts, then:
git push --force-with-lease

Once resolved, the needs-rebase label will be removed automatically on the next check. 🙌

@github-actions
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⚠️ Hey @anshika1179, this PR has merge conflicts with the main branch.

Please pull the latest changes and resolve the conflicts so we can review it!

git fetch origin
git rebase origin/main
# resolve any conflicts, then:
git push --force-with-lease

Once resolved, the needs-rebase label will be removed automatically on the next check. 🙌

@github-actions
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⚠️ Hey @anshika1179, this PR has merge conflicts with the main branch.

Please pull the latest changes and resolve the conflicts so we can review it!

git fetch origin
git rebase origin/main
# resolve any conflicts, then:
git push --force-with-lease

Once resolved, the needs-rebase label will be removed automatically on the next check. 🙌

@github-actions
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⚠️ Hey @anshika1179, this PR has merge conflicts with the main branch.

Please pull the latest changes and resolve the conflicts so we can review it!

git fetch origin
git rebase origin/main
# resolve any conflicts, then:
git push --force-with-lease

Once resolved, the needs-rebase label will be removed automatically on the next check. 🙌

@github-actions
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⚠️ Hey @anshika1179, this PR has merge conflicts with the main branch.

Please pull the latest changes and resolve the conflicts so we can review it!

git fetch origin
git rebase origin/main
# resolve any conflicts, then:
git push --force-with-lease

Once resolved, the needs-rebase label will be removed automatically on the next check. 🙌

@github-actions
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⚠️ Hey @anshika1179, this PR has merge conflicts with the main branch.

Please pull the latest changes and resolve the conflicts so we can review it!

git fetch origin
git rebase origin/main
# resolve any conflicts, then:
git push --force-with-lease

Once resolved, the needs-rebase label will be removed automatically on the next check. 🙌

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github-actions Bot commented Jun 1, 2026

⚠️ Hey @anshika1179, this PR has merge conflicts with the main branch.

Please pull the latest changes and resolve the conflicts so we can review it!

git fetch origin
git rebase origin/main
# resolve any conflicts, then:
git push --force-with-lease

Once resolved, the needs-rebase label will be removed automatically on the next check. 🙌

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github-actions Bot commented Jun 1, 2026

⚠️ Hey @anshika1179, this PR has merge conflicts with the main branch.

Please pull the latest changes and resolve the conflicts so we can review it!

git fetch origin
git rebase origin/main
# resolve any conflicts, then:
git push --force-with-lease

Once resolved, the needs-rebase label will be removed automatically on the next check. 🙌

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github-actions Bot commented Jun 1, 2026

⚠️ Hey @anshika1179, this PR has merge conflicts with the main branch.

Please pull the latest changes and resolve the conflicts so we can review it!

git fetch origin
git rebase origin/main
# resolve any conflicts, then:
git push --force-with-lease

Once resolved, the needs-rebase label will be removed automatically on the next check. 🙌

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github-actions Bot commented Jun 1, 2026

⚠️ Hey @anshika1179, this PR has merge conflicts with the main branch.

Please pull the latest changes and resolve the conflicts so we can review it!

git fetch origin
git rebase origin/main
# resolve any conflicts, then:
git push --force-with-lease

Once resolved, the needs-rebase label will be removed automatically on the next check. 🙌

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github-actions Bot commented Jun 1, 2026

⚠️ Hey @anshika1179, this PR has merge conflicts with the main branch.

Please pull the latest changes and resolve the conflicts so we can review it!

git fetch origin
git rebase origin/main
# resolve any conflicts, then:
git push --force-with-lease

Once resolved, the needs-rebase label will be removed automatically on the next check. 🙌

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github-actions Bot commented Jun 1, 2026

⚠️ Hey @anshika1179, this PR has merge conflicts with the main branch.

Please pull the latest changes and resolve the conflicts so we can review it!

git fetch origin
git rebase origin/main
# resolve any conflicts, then:
git push --force-with-lease

Once resolved, the needs-rebase label will be removed automatically on the next check. 🙌

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github-actions Bot commented Jun 1, 2026

⚠️ Hey @anshika1179, this PR has merge conflicts with the main branch.

Please pull the latest changes and resolve the conflicts so we can review it!

git fetch origin
git rebase origin/main
# resolve any conflicts, then:
git push --force-with-lease

Once resolved, the needs-rebase label will be removed automatically on the next check. 🙌

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github-actions Bot commented Jun 1, 2026

⚠️ Hey @anshika1179, this PR has merge conflicts with the main branch.

Please pull the latest changes and resolve the conflicts so we can review it!

git fetch origin
git rebase origin/main
# resolve any conflicts, then:
git push --force-with-lease

Once resolved, the needs-rebase label will be removed automatically on the next check. 🙌

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github-actions Bot commented Jun 1, 2026

⚠️ Hey @anshika1179, this PR has merge conflicts with the main branch.

Please pull the latest changes and resolve the conflicts so we can review it!

git fetch origin
git rebase origin/main
# resolve any conflicts, then:
git push --force-with-lease

Once resolved, the needs-rebase label will be removed automatically on the next check. 🙌

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github-actions Bot commented Jun 1, 2026

⚠️ Hey @anshika1179, this PR has merge conflicts with the main branch.

Please pull the latest changes and resolve the conflicts so we can review it!

git fetch origin
git rebase origin/main
# resolve any conflicts, then:
git push --force-with-lease

Once resolved, the needs-rebase label will be removed automatically on the next check. 🙌

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github-actions Bot commented Jun 1, 2026

⚠️ Hey @anshika1179, this PR has merge conflicts with the main branch.

Please pull the latest changes and resolve the conflicts so we can review it!

git fetch origin
git rebase origin/main
# resolve any conflicts, then:
git push --force-with-lease

Once resolved, the needs-rebase label will be removed automatically on the next check. 🙌

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github-actions Bot commented Jun 1, 2026

⚠️ Hey @anshika1179, this PR has merge conflicts with the main branch.

Please pull the latest changes and resolve the conflicts so we can review it!

git fetch origin
git rebase origin/main
# resolve any conflicts, then:
git push --force-with-lease

Once resolved, the needs-rebase label will be removed automatically on the next check. 🙌

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github-actions Bot commented Jun 1, 2026

⚠️ Hey @anshika1179, this PR has merge conflicts with the main branch.

Please pull the latest changes and resolve the conflicts so we can review it!

git fetch origin
git rebase origin/main
# resolve any conflicts, then:
git push --force-with-lease

Once resolved, the needs-rebase label will be removed automatically on the next check. 🙌

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github-actions Bot commented Jun 1, 2026

⚠️ Hey @anshika1179, this PR has merge conflicts with the main branch.

Please pull the latest changes and resolve the conflicts so we can review it!

git fetch origin
git rebase origin/main
# resolve any conflicts, then:
git push --force-with-lease

Once resolved, the needs-rebase label will be removed automatically on the next check. 🙌

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github-actions Bot commented Jun 1, 2026

⚠️ Hey @anshika1179, this PR has merge conflicts with the main branch.

Please pull the latest changes and resolve the conflicts so we can review it!

git fetch origin
git rebase origin/main
# resolve any conflicts, then:
git push --force-with-lease

Once resolved, the needs-rebase label will be removed automatically on the next check. 🙌

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github-actions Bot commented Jun 1, 2026

⚠️ Hey @anshika1179, this PR has merge conflicts with the main branch.

Please pull the latest changes and resolve the conflicts so we can review it!

git fetch origin
git rebase origin/main
# resolve any conflicts, then:
git push --force-with-lease

Once resolved, the needs-rebase label will be removed automatically on the next check. 🙌

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github-actions Bot commented Jun 1, 2026

⚠️ Hey @anshika1179, this PR has merge conflicts with the main branch.

Please pull the latest changes and resolve the conflicts so we can review it!

git fetch origin
git rebase origin/main
# resolve any conflicts, then:
git push --force-with-lease

Once resolved, the needs-rebase label will be removed automatically on the next check. 🙌

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github-actions Bot commented Jun 1, 2026

⚠️ Hey @anshika1179, this PR has merge conflicts with the main branch.

Please pull the latest changes and resolve the conflicts so we can review it!

git fetch origin
git rebase origin/main
# resolve any conflicts, then:
git push --force-with-lease

Once resolved, the needs-rebase label will be removed automatically on the next check. 🙌

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github-actions Bot commented Jun 1, 2026

⚠️ Hey @anshika1179, this PR has merge conflicts with the main branch.

Please pull the latest changes and resolve the conflicts so we can review it!

git fetch origin
git rebase origin/main
# resolve any conflicts, then:
git push --force-with-lease

Once resolved, the needs-rebase label will be removed automatically on the next check. 🙌

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github-actions Bot commented Jun 1, 2026

⚠️ Hey @anshika1179, this PR has merge conflicts with the main branch.

Please pull the latest changes and resolve the conflicts so we can review it!

git fetch origin
git rebase origin/main
# resolve any conflicts, then:
git push --force-with-lease

Once resolved, the needs-rebase label will be removed automatically on the next check. 🙌

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github-actions Bot commented Jun 1, 2026

⚠️ Hey @anshika1179, this PR has merge conflicts with the main branch.

Please pull the latest changes and resolve the conflicts so we can review it!

git fetch origin
git rebase origin/main
# resolve any conflicts, then:
git push --force-with-lease

Once resolved, the needs-rebase label will be removed automatically on the next check. 🙌

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github-actions Bot commented Jun 1, 2026

⚠️ Hey @anshika1179, this PR has merge conflicts with the main branch.

Please pull the latest changes and resolve the conflicts so we can review it!

git fetch origin
git rebase origin/main
# resolve any conflicts, then:
git push --force-with-lease

Once resolved, the needs-rebase label will be removed automatically on the next check. 🙌

@github-actions
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github-actions Bot commented Jun 1, 2026

⚠️ Hey @anshika1179, this PR has merge conflicts with the main branch.

Please pull the latest changes and resolve the conflicts so we can review it!

git fetch origin
git rebase origin/main
# resolve any conflicts, then:
git push --force-with-lease

Once resolved, the needs-rebase label will be removed automatically on the next check. 🙌

@github-actions github-actions Bot added status:blocked This PR is blocked due to a failing CI check. and removed needs-rebase This PR has merge conflicts and needs a rebase. labels Jun 1, 2026
@github-actions github-actions Bot added type:bug Something isn't working as expected and removed type:security Security fixes, dependency updates, or hardening labels Jun 2, 2026
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Labels

GSSoC 2026 level:advanced Complex contributions involving architecture, optimization, or significant feature work mentor:Aamod007 quality:exceptional Outstanding contribution with exceptional implementation quality, testing. status:blocked This PR is blocked due to a failing CI check. type:bug Something isn't working as expected

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bug: Rate Limiting Bypass via X-Forwarded-For Header Spoofing leading to API Abuse

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