CVE-2026-15195
MediumCVSS 6.3Exploitation Probability (EPSS)
Low risk40th percentile - higher than 40% of all known CVEs
Summary
A weakness has been identified in the apidevtools json-schema-ref-parser library, impacting the Refs.set/Pointer.set function in lib/pointer.ts. A manipulation can lead to improperly controlled modification of object prototype attributes, and the attack can be launched remotely. The fix is available in version 15.3.6.
Risk Assessment
The prototype pollution vulnerability may allow an attacker to modify application behavior if the application passes an attacker-controlled pointer to $Refs.set(). Dependency presence alone does not establish exploitability.
Recommendation
Upgrade json-schema-ref-parser to version 15.3.6 or later. Review applications that pass user-controlled input to $Refs.set() and protect them with proper validation.
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Original NVD description (English source)
A weakness has been identified in apidevtools json-schema-ref-parser. This impacts the function Refs.set/Pointer.set in the library lib/pointer.ts. Executing a manipulation can lead to improperly controlled modification of object prototype attributes. The attack can be launched remotely. Upgrading to version 15.3.6 will fix this issue. This patch is called a786bc6afc3674f650496472ee93d5cf74c4bd84. It is suggested to upgrade the affected component. The project maintainer confirms: "I reproduced prototype pollution through the public $Refs.set() API in published versions 7.1.4, 9.0.0, 11.0.0, 14.0.0, 14.2.1, 15.3.0, and 15.3.5. The same pointer is rejected by 15.3.6 without modifying Object.prototype. This reported path requires an application to pass an attacker-controlled pointer to $Refs.set(); dependency presence alone does not establish exploitability."
Vulnerability data from NVD (NIST) · CISA KEV · EPSS

