# unhead (npm) vulnerabilities

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

## At a glance

- Latest release: not known (cve.now hasn't read this package's releases)
- Newest unaffected release: not known without release data
- Registry: https://www.npmjs.com/package/unhead

## Advisories (3)

### [CVE-2026-39315](https://cve.now/CVE-2026-39315): Unhead has a hasDangerousProtocol() bypass via leading-zero padded HTML entities in useHeadSafe()

- Severity: Medium 6.1
- Published: Apr 9, 2026
- Affected: fixed in 2.1.13.

### [CVE-2026-31873](https://cve.now/CVE-2026-31873): Unhead has a Bypass of URI Scheme Sanitization in makeTagSafe via Case-Sensitivity

- Severity: None 0.0
- Published: Mar 12, 2026
- Affected: fixed in 2.1.11.

### [CVE-2026-31860](https://cve.now/CVE-2026-31860): Unhead has a XSS bypass in \`useHeadSafe\` via attribute name injection and case-sensitive protocol check

- Severity: Medium 5.3
- Published: Mar 12, 2026
- Affected: fixed in 2.1.11.

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