Vulnerability Details (CWE-409 - Decompression Bomb)

[fapulito]

Affected: urllib3 ≤ 2.6.2
Risk: Malicious servers can trigger excessive resource consumption via decompression bombs
Attack Vector: Redirect responses with preload_content=False

Summary by CodeRabbit

• Chores
  • Updated project dependency to enhance application stability and ensure compatibility.

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[coderabbitai]

Walkthrough

Added urllib3>=2.6.3 as a new dependency to requirements.txt, positioned after ipython>=7.0.0 with surrounding blank lines. No other dependencies or configuration sections were modified. This addition impacts dependency resolution and installation processes.

Changes

Cohort / File(s)	Summary
Dependency Addition requirements.txt	Added urllib3>=2.6.3 dependency

Estimated code review effort

🎯 1 (Trivial) | ⏱️ ~2 minutes

Possibly related issues

• Jupyter vulnerability with urllib3<2.6.3 #8: Both changes directly update requirements.txt to add urllib3>=2.6.3 as a dependency, indicating related or coordinated work across repositories.

Poem

🐰 urllib3 hops into our nest,
A network request becomes our best,
With speed and grace, the data flows,
Through burrows deep, where connection grows,
Our dependencies now bloom and rest! ✨

🚥 Pre-merge checks | ✅ 3

✅ Passed checks (3 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title accurately describes the main change: it addresses a specific vulnerability (CWE-409 decompression bomb) by upgrading urllib3, which is the primary objective reflected in both the PR description and the dependency update.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.

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[fapulito]

Issue #8

[fapulito]

Will merge after packages are rebuilt this weekend pending local testing.

[coderabbitai]

Actionable comments posted: 0

🧹 Nitpick comments (1)

requirements.txt (1)

8-8: Move urllib3 to Core dependencies or a dedicated Security/HTTP section.

urllib3 2.6.3 fixes CVE-2026-21441, a high-severity decompression-bomb vulnerability affecting the streaming API when HTTP redirects are followed. However, urllib3 is a general HTTP client library and should not be categorized under "Jupyter notebook support"—it is not a Jupyter/IPython dependency. Placing it there obscures its actual purpose and could confuse developers about why it's required.

Consider moving it to "Core dependencies" or creating a separate "Security/HTTP" section for better organization and clarity.

📜 Review details

Configuration used: Organization UI

Review profile: CHILL

Plan: Pro

Cache: Disabled due to Reviews > Disable Cache setting

📥 Commits

Reviewing files that changed from the base of the PR and between 7bd212a and be33e6d.

📒 Files selected for processing (1)

• requirements.txt

🔇 Additional comments (1)

requirements.txt (1)

8-8: Security fix is appropriate and necessary.

The urllib3 2.6.3 release fixed a decompression-bomb safeguard bypass in the streaming API when HTTP redirects were followed (CVE-2026-21441, 8.9 High severity). The version constraint >=2.6.3 correctly ensures this security patch is applied.