# @acastellon/auth (npm) vulnerabilities

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

## At a glance

- Latest release: 2.3.0 (Jun 18, 2026): no advisory affects it
- Newest unaffected release: 2.3.0 (Jun 18, 2026), the latest release
- Weekly downloads: 121
- Dependents: 3
- Releases: 23 since 1.0.0 (Oct 14, 2019)
- Registry: https://www.npmjs.com/package/@acastellon/auth
- Releases read: Nov 8, 2026

## Version timeline

Affected versions per advisory, in version order:

- CVE-2026-58399: 1.0.0 to 2.2.0 (2.3.0 is outside it)

## Advisories (1)

### [CVE-2026-58399](https://cve.now/CVE-2026-58399): @acastellon/auth has an authentication bypass via spoofable headers in validateToken()

- Severity: High 8.7
- Published: Jul 1, 2026
- Affected: fixed in 2.3.0.
- Fixed in 2.3.0 (released Jun 18, 2026, 13 days before disclosure).
- The latest release, 2.3.0, is not affected.
- 74% of @acastellon/auth downloads last week were affected versions (42).

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