# web3 (PyPI) vulnerabilities

2 known vulnerabilities (1 medium, 1 low), with the versions each affects and the releases that fix them.

## At a glance

- Latest release: 8.0.0 (Aug 31, 2026): no advisory affects it
- Newest unaffected release: 8.0.0 (Aug 31, 2026), the latest release
- Weekly downloads: 1.3M
- Dependents: 862
- Releases: 252 since 0.1.7 (Apr 28, 2016)
- Registry: https://pypi.org/project/web3/
- Releases read: Nov 8, 2026

## Version timeline

Affected versions per advisory, in version order:

- CVE-2026-111171: 6.0.0b3 to 7.14.1 (7.15.0 is outside it); 8.0.0b1 (8.0.0b2 is outside it)
- CVE-2026-40072: 6.0.0b3 to 7.14.1 (7.15.0 is outside it); 8.0.0b1 (8.0.0b2 is outside it)

## Advisories (2)

### [CVE-2026-111171](https://cve.now/CVE-2026-111171): Web3.py 7.15.0 through 7.16.0 and 8.0.0b2 through 8.0.0 CCIP-Read SSRF Bypass

- Severity: Medium 6.3
- Published: Oct 15, 2026
- Affected: from 6.0.0b3, fixed in 7.15.0; from 8.0.0b1, fixed in 8.0.0b2; from 6.0.0b3, fixed in 7.15.0; from 8.0.0b1, fixed in 8.0.0b2.
- Fixed in 7.15.0 (released Apr 2, 2026, 196 days before disclosure) and 8.0.0b2 (released Apr 2, 2026, 196 days before disclosure).
- The latest release, 8.0.0, is not affected.

### [CVE-2026-40072](https://cve.now/CVE-2026-40072): web3.py affected by SSRF via CCIP Read (EIP-3668) OffchainLookup URL handling

- Severity: Low 1.7
- Published: Apr 9, 2026
- Affected: from 6.0.0b3, fixed in 7.15.0; from 8.0.0b1, fixed in 8.0.0b2; from 6.0.0b3, fixed in 7.15.0; from 8.0.0b1, fixed in 8.0.0b2.
- Fixed in 7.15.0 (released Apr 2, 2026, 7 days before disclosure) and 8.0.0b2 (released Apr 2, 2026, 7 days before disclosure).
- The latest release, 8.0.0, is not affected.

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