# @builder.io/qwik-city (npm) vulnerabilities

8 known vulnerabilities (2 critical, 1 high, 4 medium, 1 low), with the versions each affects and the releases that fix them.

## At a glance

- Latest release: 1.20.3 (Oct 25, 2026): no advisory affects it
- Newest unaffected release: 1.20.3 (Oct 25, 2026), the latest release
- Weekly downloads: 48.8K
- Dependents: 13
- Releases: 253 since 0.0.1 (May 1, 2022)
- Registry: https://www.npmjs.com/package/@builder.io/qwik-city
- Releases read: Nov 8, 2026

## Version timeline

Affected versions per advisory, in version order:

- CVE-2026-32701: 0.0.1 to 1.19.1 (1.19.2 is outside it)
- CVE-2026-25150: 0.0.1 to 1.18.0 (1.19.0 is outside it)
- CVE-2026-25148: 0.0.1 to 1.18.0 (1.19.0 is outside it)
- CVE-2026-25151: 0.0.1 to 1.18.0 (1.19.0 is outside it)
- CVE-2026-25155: 0.0.1 to 1.11.0 (1.12.0 is outside it)
- CVE-2026-25149: 0.0.1 to 1.18.0 (1.19.0 is outside it)
- CVE-2025-53620: 0.0.1 to 1.12.1 (1.13.0 is outside it)
- CVE-2023-2307: 0.0.1 to 0.103.0 (0.104.0 is outside it)

## Advisories (8)

### [CVE-2026-32701](https://cve.now/CVE-2026-32701): Qwik has array method pollution in FormData processing, allowing type confusion and DoS

- Severity: High 7.5
- Published: Mar 20, 2026
- Affected: fixed in 1.19.2.
- Fixed in 1.19.2 (released Mar 13, 2026, 7 days before disclosure).
- The latest release, 1.20.3, is not affected.
- 37% of @builder.io/qwik-city downloads last week were affected versions (17.1K).

### [CVE-2026-25150](https://cve.now/CVE-2026-25150): Prototype Pollution via FormData Processing in Qwik City

- Severity: Critical 9.3
- Published: Feb 3, 2026
- Affected: fixed in 1.19.0.
- Fixed in 1.19.0 (released Jan 30, 2026, 4 days before disclosure).
- The latest release, 1.20.3, is not affected.
- 35% of @builder.io/qwik-city downloads last week were affected versions (16K).

### [CVE-2026-25148](https://cve.now/CVE-2026-25148): Qwik SSR XSS via Unsafe Virtual Node Serialization

- Severity: Medium 5.3
- Published: Feb 3, 2026
- Affected: fixed in 1.19.0.
- Fixed in 1.19.0 (released Jan 30, 2026, 4 days before disclosure).
- The latest release, 1.20.3, is not affected.
- 35% of @builder.io/qwik-city downloads last week were affected versions (16K).

### [CVE-2026-25151](https://cve.now/CVE-2026-25151): Qwik City has a CSRF Protection Bypass via Content-Type Header Validation

- Severity: Medium 5.9
- Published: Feb 3, 2026
- Affected: fixed in 1.19.0.
- Fixed in 1.19.0 (released Jan 30, 2026, 4 days before disclosure).
- The latest release, 1.20.3, is not affected.
- 35% of @builder.io/qwik-city downloads last week were affected versions (16K).

### [CVE-2026-25155](https://cve.now/CVE-2026-25155): \[qwik-city\] CSRF protection middleware does not work properly for content type header with parameters (eg. multipart/form-data)

- Severity: Medium 5.9
- Published: Feb 3, 2026
- Affected: fixed in 1.12.0.
- Fixed in 1.12.0 (released Dec 23, 2024, 407 days before disclosure).
- The latest release, 1.20.3, is not affected.
- 15% of @builder.io/qwik-city downloads last week were affected versions (7K).

### [CVE-2026-25149](https://cve.now/CVE-2026-25149): Qwik City Open Redirect via fixTrailingSlash

- Severity: Low 2.7
- Published: Feb 3, 2026
- Affected: fixed in 1.19.0.
- Fixed in 1.19.0 (released Jan 30, 2026, 4 days before disclosure).
- The latest release, 1.20.3, is not affected.
- 35% of @builder.io/qwik-city downloads last week were affected versions (16K).

### [CVE-2025-53620](https://cve.now/CVE-2025-53620): Crashing any Qwik Server

- Severity: Critical 9.2
- Published: Jul 9, 2025
- Affected: fixed in 1.13.0.
- Fixed in 1.13.0 (released Apr 1, 2025, 99 days before disclosure).
- The latest release, 1.20.3, is not affected.
- 17% of @builder.io/qwik-city downloads last week were affected versions (7.8K).

### [CVE-2023-2307](https://cve.now/CVE-2023-2307): Cross-Site Request Forgery (CSRF) in builderio/qwik

- Severity: Medium 4.7
- Published: Apr 26, 2023
- Affected: fixed in 0.104.0.
- Fixed in 0.104.0 (released Apr 25, 2023, 1 day before disclosure).
- The latest release, 1.20.3, is not affected.
- 1.6% of @builder.io/qwik-city downloads last week were affected versions (723).

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