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

Exploitation

No confirmed exploitation recorded. Patch Next marks exploitation only from CISA KEV.

CVSS

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

EPSS

• CVE-2026-48054: 0.64% estimated exploitation activity in the next 30 days; percentile 50.51 (FIRST EPSS, 2026-11-03). This is a model estimate, not proof of exploitation or customer exposure.

As published by the source; long descriptions are shortened.

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.

Published by the source

11 Jun 2026, 13:27 UTC

Last modified by the source

10 Sep 2026, 03:50 UTC

Source last checked

26 Oct 2026, 12:55 UTC

1. Revision 2 · amended · 26 Oct 2026

   Amended from ghsa record GHSA-4x76-22x2-rx8v

2. Revision 1 · created · 24 Oct 2026

   Published from osv record GHSA-4x76-22x2-rx8v

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# Patch Next advisory brief: CVE-2026-48054

Advisory: OpenZeppelin Contracts Wizard has Code Injection in Generated Hardhat and Foundry Tests via Unsanitized opts.name / opts.uri
IDs: CVE-2026-48054, GHSA-4x76-22x2-rx8v
Record: https://patchnext.com/advisories/cve-2026-48054 (revision 2, source checked 26 Oct 2026, 12:55 UTC)
Inventory: none attached. This brief comes from a public page and does not say whether any deployment is affected.
Severity: High (CVSS 8.8)
Exploitation: no confirmed exploitation recorded. Patch Next confirms exploitation only from CISA KEV.
Vendor response: Vendor fix available; fixed versions by package: @openzeppelin/wizard 0.10.9. A vendor fix does not mean a deployment is fixed.

## Affected components
- npm @openzeppelin/wizard: affected <= 0.10.8; fixed in 0.10.9

## Suggested inspection (read-only)
- `npm ls @openzeppelin/wizard --all`: lists every installed copy and version, including transitive ones. Run in the project root after `npm ci`.

## Supported action
Upgrade each affected component to a fixed version on its release line. For a transitive dependency, upgrade the parent package or add an override or constraint, then regenerate the lockfile. Redeploy every environment that ran an affected version.

## Required regression checks
- Run the test suite and a production build.
- Exercise the features that depend on @openzeppelin/wizard.
- Repeat the inspection and confirm that only fixed versions remain installed.

## Rollback considerations
- Keep the previous lockfile and deployment artifact. Rolling back reinstates the vulnerable version, so apply any documented mitigation while you fix forward.

## Unresolved questions
- Which deployments run an affected version?
- Exploitation status can change. Check again before lowering the priority.
- Mark the work resolved only after the fixed version is verified in production.

## Sources
- Verified: https://osv.dev/vulnerability/GHSA-4x76-22x2-rx8v (OSV record GHSA-4x76-22x2-rx8v lists affected ranges: npm @openzeppelin/wizard >=0 <0.10.9 (fixed))
- Verified: https://github.com/advisories/GHSA-4x76-22x2-rx8v (GitHub-reviewed advisory GHSA-4x76-22x2-rx8v lists affected ranges: npm @openzeppelin/wizard >=0 <=0.10.8)

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