CVE-2026-48054Network attack vector

Code execution via unescaped generated test literals

Published Aug 6, 2026 · Updated Aug 6, 2026

Code injection in OpenZeppelin Contracts Wizard before 0.10.9 allows remote attackers to execute code through generated test files. The zipHardhat and zipFoundry generators place opts.name and opts.uri inside TypeScript or Solidity string literals without escaping syntax-breaking characters. Exploitation requires a developer to open a crafted link, download the generated archive, and run its Hardhat or Foundry tests, which executes injected code with local OS privileges.

CVSS severity8.8
High
EPSS probability0.45%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Code injection in OpenZeppelin Contracts Wizard before 0.10.9 allows remote attackers to execute code through generated test files. The zipHardhat and zipFoundry generators place opts.name and opts.uri inside TypeScript or Solidity string literals without escaping syntax-breaking characters. Exploitation requires a developer to open a crafted link, download the generated archive, and run its Hardhat or Foundry tests, which executes injected code with local OS privileges.

The record

CVE
CVE-2026-48054
Published
Aug 6, 2026
Updated
Aug 6, 2026
Vendor
OpenZeppelin
Product
OpenZeppelin Contracts Wizard
Classifications
CWE-94, T1204.001, T1204.002
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Aug 6, 2026CVE publishedPublication date reported by the CVE source.
  2. Aug 6, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=< 0.10.9

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

OpenZeppelin · OpenZeppelin Contracts Wizardversion=< 0.10.9

Published CVSS scores

8.8GitHub Security AdvisoryCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-94Improper Control of Generation of Code ('Code Injection')
T1204.001Malicious Link
T1204.002Malicious File

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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