CVE-2026-56697
What it is
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.
At a glance
- Exploitability
- Can be exploited over the network without logging in, but needs a user to act. Limited direct impact.
- Exploit odds
- 0.3% chance of exploitation in the next 30 days (EPSS).
- Fix
- A patch, advisory or fixed version is referenced. Upgrade or apply it.
Timeline
- PublishedDisclosed publicly on CVE.org and NVD
- Last updatedMost recent change to the record
Why it ranks here
- Exploited in the wild: no, CISA does not list it.
- Exploit odds: 0.3% in the next 30 days (EPSS).
- Severity: 5.3 MEDIUM (CVSS).
- Fix: a patch or advisory is linked.
Details
- Published
- Last modified
- Exploit probability
- 0.3% · EPSS, next 30 days
- Weakness
- CWE-601
- Record status
- Analyzed
Affected
- Nuxt < 3.21.7
- Nuxt < 4.4.7
Attack profile CVSS 4.0 · 5.3
- Attack vector
- Network
- Complexity
- Low
- Attack requirements
- None
- Privileges needed
- None
- User interaction
- Passive
- Confidentiality
- Low
- Integrity
- Low
- Availability
- None
Raw 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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Is it in your code?
Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.
Read https://cve-list.com/agent/cve/CVE-2026-56697.md and follow it. Check whether this project is affected by CVE-2026-56697. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.
Fix and advisories
- https://github.com/nuxt/nuxt/commit/6497d99dd106254abd089f6a263d7773869a343b
- https://github.com/nuxt/nuxt/commit/e447a793c47766834f7497f8412a76cd56fd8ee1
- https://github.com/nuxt/nuxt/security/advisories/GHSA-c9cv-mq2m-ppp3
References
- https://github.com/nuxt/nuxt/commit/6497d99dd106254abd089f6a263d7773869a343b
- https://github.com/nuxt/nuxt/commit/e447a793c47766834f7497f8412a76cd56fd8ee1
- https://github.com/nuxt/nuxt/security/advisories/GHSA-c9cv-mq2m-ppp3
- https://www.vulncheck.com/advisories/nuxt-open-redirect-via-protocol-relative-paths-in-reloadnuxtapp