# linkify-it (npm) vulnerabilities

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

## At a glance

- Latest release: 6.1.0 (Jul 22, 2026): no advisory affects it
- Newest unaffected release: 6.1.0 (Jul 22, 2026), the latest release
- Weekly downloads: 46.5M
- Dependents: 1,104
- Releases: 32 since 0.1.0 (Feb 12, 2015)
- Registry: https://www.npmjs.com/package/linkify-it
- Releases read: Nov 8, 2026

## Version timeline

Affected versions per advisory, in version order:

- CVE-2026-48801: 0.1.0 to 5.0.0 (5.0.1 is outside it)
- CVE-2026-59887: 0.1.0 to 5.0.1 (5.0.2 is outside it)

## Advisories (2)

### [CVE-2026-48801](https://cve.now/CVE-2026-48801): linkify-it: Quadratic algorithmic complexity in LinkifyIt#match scan loop

- Severity: High 8.7
- Published: Jul 14, 2026
- Affected: fixed in 5.0.1.
- Fixed in 5.0.1 (released May 23, 2026, 52 days before disclosure).
- The latest release, 6.1.0, is not affected.
- 39% of linkify-it downloads last week were affected versions (20.4M).

### [CVE-2026-59887](https://cve.now/CVE-2026-59887): linkify-it: Quadratic-complexity DoS via the \`mailto:\` validator scan-loop on attacker text

- Severity: High 7.5
- Published: Jul 8, 2026
- Affected: fixed in 5.0.2.
- Fixed in 5.0.2 (released Jul 1, 2026, 7 days before disclosure).
- The latest release, 6.1.0, is not affected.
- 43% of linkify-it downloads last week were affected versions (22.4M).

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