# granian (PyPI) vulnerabilities

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

## At a glance

- Latest release: 2.8.7 (Oct 28, 2026): no advisory affects it
- Newest unaffected release: 2.8.7 (Oct 28, 2026), the latest release
- Weekly downloads: 3.8M
- Dependents: 300
- Releases: 63 since 0.1.5 (Dec 5, 2022)
- Registry: https://pypi.org/project/granian/
- Releases read: Nov 8, 2026

## Version timeline

Affected versions per advisory, in version order:

- CVE-2026-42545: 0.2.6 to 2.7.3 (2.7.4 is outside it)
- CVE-2026-42544: 1.2.3 to 2.7.3 (2.7.4 is outside it)

## Advisories (2)

### [CVE-2026-42545](https://cve.now/CVE-2026-42545): Granian: DoS via WSGI response header panic

- Severity: Medium 5.9
- Published: May 12, 2026
- Affected: from 0.2.0, fixed in 2.7.4; from 0.2.0, fixed in 2.7.4.
- Fixed in 2.7.4 (released Apr 23, 2026, 19 days before disclosure).
- The latest release, 2.8.7, is not affected.

### [CVE-2026-42544](https://cve.now/CVE-2026-42544): Granian: Unauthenticated DoS via WebSocket subprotocol header panic

- Severity: High 7.5
- Published: May 12, 2026
- Affected: from 1.2.0, fixed in 2.7.4; from 1.2.0, fixed in 2.7.4.
- Fixed in 2.7.4 (released Apr 23, 2026, 19 days before disclosure).
- The latest release, 2.8.7, is not affected.

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