# quasar (npm) vulnerabilities

4 known vulnerabilities (1 critical, 1 high, 1 medium, 1 low), with the versions each affects and the releases that fix them.

## At a glance

- Latest release: 2.35.2 (Oct 19, 2026): no advisory affects it
- Newest unaffected release: 2.35.2 (Oct 19, 2026), the latest release
- Weekly downloads: 521.9K
- Dependents: 359
- Releases: 450 since 0.0.0 (Jul 20, 2015)
- Registry: https://www.npmjs.com/package/quasar
- Releases read: Nov 8, 2026

## Version timeline

Affected versions per advisory, in version order:

- CVE-2026-106104: 0.0.0 to 2.23.2 (2.23.3 is outside it)
- CVE-2026-106102: 0.0.0 to 2.21.4 (2.22.0 is outside it)
- CVE-2026-106101: 0.0.0 to 2.32.1 (2.32.2 is outside it)
- CVE-2026-73647: 0.0.0 to 2.21.4 (2.22.0 is outside it)

## Advisories (4)

### [CVE-2026-106104](https://cve.now/CVE-2026-106104): Quasar Framework: Super-linear regex backtracking on User-Agent lets one request stall a Quasar SSR server

- Severity: High 8.7
- Published: Oct 6, 2026
- Affected: fixed in 2.23.3.
- Fixed in 2.23.3 (released Jul 28, 2026, 70 days before disclosure).
- The latest release, 2.35.2, is not affected.
- 62% of quasar downloads last week were affected versions (341.9K).

### [CVE-2026-106102](https://cve.now/CVE-2026-106102): Quasar Framework: Stored/Reflected XSS via unescaped SSR meta tag rendering in getHead()

- Severity: Critical 10.0
- Published: Oct 6, 2026
- Affected: fixed in 2.22.0.
- Fixed in 2.22.0 (released Jul 21, 2026, 77 days before disclosure).
- The latest release, 2.35.2, is not affected.
- 61% of quasar downloads last week were affected versions (331.8K).

### [CVE-2026-106101](https://cve.now/CVE-2026-106101): Quasar Framework: DOM Clobbering in Quasar openURL() SafariViewController Integration Causes Client-Side Denial of Service

- Severity: Low 3.1
- Published: Oct 6, 2026
- Affected: fixed in 2.32.2.
- Fixed in 2.32.2 (released Sep 11, 2026, 25 days before disclosure).
- The latest release, 2.35.2, is not affected.
- 69% of quasar downloads last week were affected versions (376K).

### [CVE-2026-73647](https://cve.now/CVE-2026-73647): Quasar Framework: Prototype pollution in Quasar extend() utility

- Severity: Medium 5.6
- Published: Aug 13, 2026
- Affected: fixed in 2.22.0.
- Fixed in 2.22.0 (released Jul 21, 2026, 23 days before disclosure).
- The latest release, 2.35.2, is not affected.
- 61% of quasar downloads last week were affected versions (331.8K).

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