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CVE-2026-48054 — Vulnerability in @openzeppelin/wizard — CVE Details

HIGH

OpenZeppelin Contracts Wizard has Code Injection in Generated Hardhat and Foundry Tests via Unsanitized opts.name / opts.uri

Published June 11, 2026Updated September 10, 2026Source: osv

Summary

## Summary The OpenZeppelin Contracts Wizard generated Hardhat (`test/test.ts`) and Foundry (`test/<Name>.t.sol`) example test files that interpolated user-supplied strings (`opts.name`, `opts.uri`) into the test source without escaping. A crafted input could produce a generated test file in which the input string broke out of its surrounding literal and was parsed as code, executing when a developer ran `npm test` or `forge test` on the downloaded project. ## Impact - **Users of the hosted Wizard at https://wizard.openzeppelin.com:** no action required. The site has been redeployed with the fix. - **Users of `@openzeppelin/wizard` via the documented public API:** not affected. The vulnerable functions (`zipHardhat`, `zipFoundry`) are not part of the package's documented public exports. - **Callers of `zipHardhat` / `zipFoundry` who forward externally-controlled strings into `opts.name` / `opts.uri`:** upgrade to `0.10.9`. ## Patches Fixed in `@openzeppelin/wizard@0.10.9`.

Advisory Timeline

  • First published June 11, 2026 (123 days ago).
  • Last revised September 10, 2026 — 91 days after initial publication.

Remediation

Upgrade to the fixed version using your package manager.

npm
Update @openzeppelin/wizard to 0.10.9 or later
npm install @openzeppelin/wizard@0.10.9

After upgrading, run your dependency scanner again to confirm the vulnerability is resolved.

Affected Packages (1)

Affects 1 ecosystem: npm (1).

PackageEcosystemAffectedFixed In
@openzeppelin/wizard
npm
All versions0.10.9

Vulnerability Classification

Common Weakness Enumeration (CWE) identifiers for this vulnerability type.

CVSS Score Breakdown

What the CVSS (Common Vulnerability Scoring System) 8.8 score means for each attack dimension.

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

References

Frequently Asked Questions

What is CVE-2026-48054?
OpenZeppelin Contracts Wizard has Code Injection in Generated Hardhat and Foundry Tests via Unsanitized opts.name / opts.uri This vulnerability has been assigned a severity rating of HIGH (CVSS score: 8.8/10).
How do I check if my project is affected by CVE-2026-48054?
CVE-2026-48054 affects @openzeppelin/wizard. Use GeekWala's free vulnerability scanner to check your dependencies against CVE-2026-48054 and 200,000+ other known vulnerabilities.

Severity & Exploitability

CVSS Score
8.8

High exploitability or significant impact. Prioritize remediation within days.

Also Known As

GHSA-4x76-22x2-rx8v

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