urllib3

PyPI

Is urllib3 safe to use?

Based on the latest brin safety scan, no vulnerabilities or threats were detected for urllib3 v2.6.3. Trust score: 80/100. No known CVE vulnerabilities, no detected threat patterns, and no suspicious capabilities identified. This is an automated, point-in-time assessment.

Install (safety-checked)

urllib3 Passed Security Checks

No security concerns detected

clean
CVEs

0

Threats

0

Install Scripts

0

No Concerns Detected

No security concerns detected in the latest brin assessment. This is an automated, point-in-time evaluation — security posture may change.

This is an automated, point-in-time assessment and may contain errors. Findings are risk indicators, not confirmed threats. Security posture may change over time. Maintainers can dispute findings via the brin review process.

urllib3 Capabilities & Permissions

What urllib3 can access when installed. Review these capabilities before using with AI agents like Cursor, Claude Code, or Codex.

Network Access

This package makes network requests.

127.0.0.1127.0.0.1%0d%0aConnection%3a%20keep-alive16.17.18.19173.194.35.7192.168.0.1Königsgäßchen.de[{cls.host}][{cls.proxy_host}][{proxy.host}]\ud7ff.com+64 more
Protocols: http, https, tcp

Filesystem Access

Reads and writes to the filesystem.

.env (r)/usr/ (rw).env (rw).env (rw)/tmp/ (rw).env (rw).env (rw)/tmp/ (rw)

Process Spawning

This package can spawn child processes.

Environment Variables

Accesses the following environment variables.

CIGITHUB_ACTIONSREADTHEDOCS_CANONICAL_URLSSLKEYLOGFILETZ

Native Modules

Contains native code that runs outside the JavaScript sandbox.

cryptography

AGENTS.md for urllib3

Good instructions lead to good results. brin adds urllib3 documentation to your AGENTS.md so your agent knows how to use it properly—improving both safety and performance.

brin init

Vercel's research: 100% accuracy with AGENTS.md vs 53% without →

urllib3 Documentation & Source Code

For the full urllib3 README, API documentation, and source code, visit the official package registry.

Frequently asked questions about urllib3 safety

Weekly Downloads

278.9M

Version

2.6.3

License

ISC

Last Scanned

Feb 5, 2026

Trust Score

80/100·Legitimacy signals, not safety

Capabilities

Network

Connects to: 127.0.0.1, 127.0.0.1%0d%0aConnection%3a%20keep-alive, 16.17.18.19...

Filesystem

Reads & Writes files

Process

Spawns child processes

Environment

Accesses: CI, GITHUB_ACTIONS, READTHEDOCS_CANONICAL_URL...

Native

Contains native modules

Is urllib3 Safe? | PyPI Safety Scan - brin