# re2js (npm) vulnerabilities

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

## At a glance

- Latest release: 2.9.1 (Oct 28, 2026): no advisory affects it
- Newest unaffected release: 2.9.1 (Oct 28, 2026), the latest release
- Weekly downloads: 14.5M
- Dependents: 1,032
- Releases: 51 since 0.1.0 (Jul 14, 2023)
- Registry: https://www.npmjs.com/package/re2js
- Releases read: Nov 8, 2026

## Version timeline

Affected versions per advisory, in version order:

- CVE-2026-116795: 2.2.0 to 2.8.6 (2.8.7 is outside it)

## Advisories (1)

### [CVE-2026-116795](https://cve.now/CVE-2026-116795): RE2JS: Quadratic-time denial of service in re2js lookbehind matching

- Severity: High 7.5
- Published: Oct 28, 2026
- Affected: from 2.2.0, fixed in 2.8.7.
- Fixed in 2.8.7 (released Oct 17, 2026, 11 days before disclosure).
- The latest release, 2.9.1, is not affected.
- 31% of re2js downloads last week were affected versions (5.4M).

---

Source: cve.now
Built by [Sazabi](https://www.sazabi.com/?utm_source=cve-now&utm_medium=markdown), AI-native observability and security: automatic issue detection, plain-language log search and live dashboards.
Page: https://cve.now/packages/npm/re2js
Site guide for agents: https://cve.now/llms.txt
Uses NVD data; not endorsed by NVD.