CVE-2026-71320
Nuxt template injection enables server-side RCE when vue.runtimeCompiler is enabled.
Is CVE-2026-71320 being exploited?
Not confirmed. CVE-2026-71320 does not appear in CISA's Known Exploited Vulnerabilities catalog, which records only exploitation that has been observed and reported publicly. That is evidence of absence of a report, not evidence the flaw is unattacked. EPSS currently estimates a 0.44% probability of exploitation in the next 30 days.
How severe is CVE-2026-71320?
CVE-2026-71320 is rated High with a CVSS score of 8.1. Severity describes how bad exploitation would be, not how likely it is: pair it with exploitation evidence before deciding what to patch first.
Is there a patch for CVE-2026-71320?
Yes. A fix has been recorded for CVE-2026-71320. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.
What does CVE-2026-71320 affect?
CVE-2026-71320 affects Nuxt.js 3.4.0 - 3.21.9 (fixed in 3.21.10), Nuxt.js 4.0.0 - 4.5.0 (fixed in 4.5.1), Apps using vue.runtimeCompiler:true with Nitro. Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-71320?
Upgrade to Nuxt 3.21.10 or 4.5.1; or disable vue.runtimeCompiler and restrict /__nuxt_island/ endpoints.
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Server-side remote code execution in Nitro via template key injection through /__nuxt_island/ props on dynamic components when vue.runtimeCompiler is true.
Immediate action required
- affected>= 4.0.0 and < 4.5.1
- affected>= 3.4.0 and < 3.21.10
As published in the CVE Program record. A version outside these ranges is not a statement that it is unaffected — vendors sometimes understate a range, and distribution-backported builds carry upstream numbers that do not reflect what was patched into them.