Is CVE-2020-15256 actively exploited?

No active exploitation of CVE-2020-15256 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2020-15256 be exploited remotely?

Yes. CVE-2020-15256 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2020-15256?

CVE-2020-15256 has a CVSS score of 9.8 (CRITICAL).

HOME VULNERABILITIESCVE-2020-15256

CRITICAL

CVE-2020-15256

CWE-20Published: October 19, 2020· Updated: Jun 17, 2026

9.8

CVSS v3.1

Official 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.

NVD Source

Technical Analysis

CVE-2020-15256 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 9.8.