# deephas (npm) vulnerabilities

2 known vulnerabilities (1 critical), with the versions each affects and the releases that fix them.

## At a glance

- Latest release: 1.0.8 (Jan 28, 2026): no advisory affects it
- Newest unaffected release: 1.0.8 (Jan 28, 2026), the latest release
- Weekly downloads: 135
- Dependents: 0
- Releases: 7 since 1.0.0 (May 6, 2015)
- Registry: https://www.npmjs.com/package/deephas
- Releases read: Nov 8, 2026

## Version timeline

Affected versions per advisory, in version order:

- CVE-2026-25047: 1.0.0 to 1.0.7 (1.0.8 is outside it)
- CVE-2020-28271: 1.0.0 to 1.0.5 (1.0.7 is outside it)

## Advisories (2)

### [CVE-2026-25047](https://cve.now/CVE-2026-25047): deepHas vulnerable to Prototype Pollution via constructor.prototype

- Severity: Critical 9.4
- Published: Jan 29, 2026
- Affected: fixed in 1.0.8.
- Fixed in 1.0.8 (released Jan 28, 2026, 1 day before disclosure).
- The latest release, 1.0.8, is not affected.
- 71% of deephas downloads last week were affected versions (88).

### [CVE-2020-28271](https://cve.now/CVE-2020-28271): Prototype pollution vulnerability in 'deephas' versions 1.0.0 through 1.0.5 allows attacker to cause a denial of service and may lead to…

- Severity: Unrated
- Published: Nov 12, 2020
- Affected: from 1.0.0, through 1.0.5.
- Fixed in 1.0.7 (released Oct 27, 2020, 16 days before disclosure), the first release outside every affected range (no listed fixed version clears them all).
- The latest release, 1.0.8, is not affected.
- 41% of deephas downloads last week were affected versions (51).

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