How severe is CVE-2026-45669?

CVE-2026-45669 has a CVSS 3.x base score of 5.4, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.

Is CVE-2026-45669 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (6th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-45669?

CVE-2026-45669 affects Nuxt. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-45669?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2026-45669 have an EU (EUVD) identifier?

Yes. CVE-2026-45669 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-36420.

When was CVE-2026-45669 published?

CVE-2026-45669 was published on 2026-06-12 and last updated on 2026-06-17.

CVE-2026-45669

CVE-2026-45669 is a medium-severity vulnerability in Nuxt with a CVSS 3.x base score of 5.4. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-83.

Key facts

Severity: Medium (CVSS 3.x base score 5.4)
CVSS v4: 5.3
EPSS exploit prediction: 0% (6th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-36420
Weakness: CWE-83
Affected product: Nuxt
Published: 2026-06-12
Last modified: 2026-06-17

Description

Nuxt is an open-source web development framework for Vue.js. From versions 3.4.3 to before 3.21.6 and 4.0.0-alpha.1 to before 4.4.6, navigateTo() with external: true generates a server-side HTML redirect body containing a <meta http-equiv="refresh"> tag. The destination URL is only sanitized by replacing " with %22, leaving <, >, &, and ' unencoded. An attacker who can influence the URL passed to navigateTo(url, { external: true }) can break out of the content="…" attribute and inject arbitrary HTML/JavaScript that executes under the application's origin. This issue has been patched in versions 3.21.6 and 4.4.6.

Frequently asked questions

What is CVE-2026-45669?: Nuxt is an open-source web development framework for Vue.js. From versions 3.4.3 to before 3.21.6 and 4.0.0-alpha.1 to before 4.4.6, navigateTo() with external: true generates a server-side HTML redirect body containing a <meta http-equiv="refresh"> tag. The destination URL is only sanitized by replacing " with %22, leaving <, >, &, and ' unencoded. An attacker who can influence the URL passed to navigateTo(url, { external: true }) can break out of the content="…" attribute and inject arbitrary HTML/JavaScript that executes under the application's origin. This issue has been patched in versions 3.21.6 and 4.4.6.
How severe is CVE-2026-45669?: CVE-2026-45669 has a CVSS 3.x base score of 5.4, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.
Is CVE-2026-45669 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (6th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-45669?: CVE-2026-45669 affects Nuxt. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-45669?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2026-45669 have an EU (EUVD) identifier?: Yes. CVE-2026-45669 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-36420.
When was CVE-2026-45669 published?: CVE-2026-45669 was published on 2026-06-12 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:nuxt:nuxt:*:*:*:*:*:*:*:*

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