CVE-2026-48054
Code injection in OpenZeppelin Wizard allows RCE on developer machines via crafted name/uri.
Is CVE-2026-48054 being exploited?
Not confirmed. CVE-2026-48054 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 0.45% probability of exploitation in the next 30 days.
How severe is CVE-2026-48054?
CVE-2026-48054 is rated High with a CVSS score of 8.8. 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-2026-48054?
Yes. A fix has been recorded for CVE-2026-48054. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.
What does CVE-2026-48054 affect?
CVE-2026-48054 affects OpenZeppelin Contracts Wizard < 0.10.9, Generated Hardhat test files (test/test.ts), Developer workstations running Node.js/Hardhat. Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-48054?
Upgrade Wizard to >=0.10.9; do not run untrusted generated tests; inspect zip contents.
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Attacker can inject Node.js into generated Hardhat tests; when run (npx hardhat test) executes arbitrary code with user OS privileges.
Immediate action required
- affected< 0.10.9
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.