How severe is CVE-2026-56317?

CVE-2026-56317 has a CVSS 3.x base score of 6.1, 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-2026-56317 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (11th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-56317?

CVE-2026-56317 affects Nuxt. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-56317?

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

Does CVE-2026-56317 have an EU (EUVD) identifier?

Yes. CVE-2026-56317 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-38112.

When was CVE-2026-56317 published?

CVE-2026-56317 was published on 2026-06-20 and last updated on 2026-06-24.

CVE-2026-56317

CVE-2026-56317 is a medium-severity vulnerability in Nuxt with a CVSS 3.x base score of 6.1. 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-79.

Key facts

Severity: Medium (CVSS 3.x base score 6.1)
CVSS v4: 2.3
EPSS exploit prediction: 0% (11th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-38112
Weakness: CWE-79
Affected product: Nuxt
Published: 2026-06-20
Last modified: 2026-06-24

Description

Nuxt before 4.4.7 (and the 3.x branch before 3.21.7) contains a cross-site scripting vulnerability in the NoScript component that writes slot content to innerHTML without escaping. Attackers can inject malicious scripts through untrusted data in NoScript slots, such as route.query parameters, which execute in the document context when the noscript tag is implicitly closed by script tags.

Frequently asked questions

What is CVE-2026-56317?: Nuxt before 4.4.7 (and the 3.x branch before 3.21.7) contains a cross-site scripting vulnerability in the NoScript component that writes slot content to innerHTML without escaping. Attackers can inject malicious scripts through untrusted data in NoScript slots, such as route.query parameters, which execute in the document context when the noscript tag is implicitly closed by script tags.
How severe is CVE-2026-56317?: CVE-2026-56317 has a CVSS 3.x base score of 6.1, 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-2026-56317 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (11th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-56317?: CVE-2026-56317 affects Nuxt. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-56317?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2026-56317 have an EU (EUVD) identifier?: Yes. CVE-2026-56317 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-38112.
When was CVE-2026-56317 published?: CVE-2026-56317 was published on 2026-06-20 and last updated on 2026-06-24.

References

Affected products (1)

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

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