# CVE-2020-15256: node-object-path: A prototype pollution vulnerability has been found in `object-path` <= 0.11.4 affecting the `set()` method

CVE-2020-15256 is fixed in node-object-path on 1 platform, first by node-object-path 0.11.3-1ubuntu0.1, released September 16, 2021. It is not reported as exploited. Patch Radar priority: Routine.

- Web page: https://patchblox.com/security/cve/CVE-2020-15256
- Priority: Routine
- CVSS: n/a (Low)
- EPSS: 0.0155
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Oct 19, 2020

## Description

A prototype pollution vulnerability has been found in `object-path` <= 0.11.4 affecting the `set()` method. The vulnerability is limited to the `includeInheritedProps` mode (if version >= 0.11.0 is used), which has to be explicitly enabled by creating a new instance of `object-path` and setting the option `includeInheritedProps: true`, or by using the default `withInheritedProps` instance. The default operating mode is not affected by the vulnerability if version >= 0.11.0 is used. Any usage of `set()` in versions < 0.11.0 is vulnerable. The issue is fixed in object-path version 0.11.5 As a workaround, don't use the `includeInheritedProps: true` options or the `withInheritedProps` instance if using a version >= 0.11.0.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | node-object-path Ubuntu 18.04.6 LTS (bionic) | 0.11.3-1ubuntu0.1 | [node-object-path 0.11.3-1ubuntu0.1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-node-object-path-0.11.3-1ubuntu0.1.md) | Sep 16, 2021 |
| Linux | node-object-path Ubuntu 20.04 LTS (focal) | 0.11.4-2ubuntu0.1 | [node-object-path 0.11.4-2ubuntu0.1](https://patchblox.com/security/data/fix/linux/ubuntu-focal-node-object-path-0.11.4-2ubuntu0.1.md) | Sep 16, 2021 |

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