# CVE-2024-36577: AppHP object-resolver prototype pollution in Module.setNestedProperty

Source: https://junglewise.ai/threats/cve-2024-36577-apphp-object-resolver-prototype-pollution-in-module  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2024-06-17. Updated: 2026-09-25  
License: CC BY 4.0 with a link back

CVE-2024-36577 · Severity: low · CVSS 3.1 · Published 2024-06-17

AppHP's object-resolver is a JavaScript library for manipulating nested object properties. A prototype pollution vulnerability in the setNestedProperty function allows attackers to inject malicious properties into JavaScript object prototypes, potentially compromising the behavior of any application using this library and affecting data integrity or enabling privilege escalation.

Vendors: [ApPHP](https://junglewise.ai/threats/vendors/apphp), [npm](https://junglewise.ai/threats/vendors/npm).

## Quick answers

**Is CVE-2024-36577 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2024-36577 being exploited in the wild.

**How severe is CVE-2024-36577?** Low severity, with a CVSS score of 3.1, published 17 June 2024.

**Which products and versions are affected?** ApPHP Object-Resolver < 3.1.1; @apphp/object-resolver (npm) SEMVER:introduced=0,fixed=3.1.1.

**Is there a fix for CVE-2024-36577?** Yes. @apphp/object-resolver (npm): upgrade to 3.1.1 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**How is CVE-2024-36577 attacked?** It is attacked over the network.

**Am I affected by CVE-2024-36577?** Check whether you run ApPHP Object-Resolver or @apphp/object-resolver (npm) at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## How to fix

- @apphp/object-resolver (npm): upgrade to 3.1.1 or later

  ```sh
  npm install @apphp/object-resolver@3.1.1
  ```


## Technical details

The vulnerability is a prototype pollution flaw (CWE-1321) in the Module.setNestedProperty function of @apphp/object-resolver versions before 3.1.1. The function failed to properly validate path inputs, allowing attackers to set properties on Object.prototype or other built-in prototypes via special key sequences (e.g., "__proto__", "constructor", "prototype"). An attacker with the ability to control the path parameter can pollute the prototype chain, affecting all objects in the application. The attack vector is network-based if the library processes untrusted user input. The vulnerability was fixed in version 3.1.1 via commit 7e347a2, which added type checking and validation for the path parameter.

## Affected products

- AppHP object-resolver < 3.1.1

## Identifiers

- CVE-2024-36577
- GHSA-qj86-v6m7-4qv2

## Timeline

- 2024-06-17: disclosed
- 2024-04-06: patched: Fix committed; version 3.1.1 released

## References

- [https://github.com/apphp/js-object-resolver/commit/7e347a26bf04d6a4f7525f6605666afbb218afca](https://github.com/apphp/js-object-resolver/commit/7e347a26bf04d6a4f7525f6605666afbb218afca)