EUVD-2026-181160

fkie_cve-2022-22143

The package convict before 6.2.2 are vulnerable to Prototype Pollution via the convict function due to missing validation of parentKey. **Note:** This vulnerability derives from an incomplete fix of another [vulnerability](https://security.snyk.io/vuln/SNYK-JS-CONVICT-1062508)

GHSA-x2w5-725j-gf2g — Prototype Pollution in convict

Affected: npm: convict

### Impact

* An attacker can inject attributes that are used in other components * An attacker can override existing attributes with ones that have incompatible type, which may lead to a crash.

The main use case of Convict is for handling server-side configurations written by the admins owning the servers, and not random users. So it's unlikely that an admin would deliberately sabotage their own server. Still a situation can happen where an admin not knowledgeable about JavaScript could be tricked by an attacker into writing the malicious JavaScript code into some config files.

### Patches

The problem is patched in `convict@6.2.3`. Users should upgrade to `convict@6.2.3`.

### Workarounds

No way for users to fix or remediate the vulnerability without upgrading

### References

* https://www.huntr.dev/bounties/1-npm-convict/ * #384 * 3b86be087d8f14681a9c889d45da7fe3ad9cd880 * 1ea0ab19c5208f66509e1c43b0d0f21c1fd29b75

### For more information

If you have any questions or comments about this advisory: add your question as a comment in #384

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EUVD-2026-181160

fkie_cve-2022-22143

GHSA-x2w5-725j-gf2g — Prototype Pollution in convict

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