CVE-2026-12208
MediumCVSS 5.3Exploitation Probability (EPSS)
Low risk24th percentile - higher than 24% of all known CVEs
Summary
jsonata-js jsonata up to version 2.2.0 has a vulnerability in the createFrame function of src/jsonata.js, allowing remote manipulation of object prototype attributes. An attacker can remotely modify prototype attributes, leading to uncontrolled object modification.
Risk Assessment
The organization is at risk of remote prototype pollution attacks, which can lead to privilege escalation or arbitrary code execution within the application context.
Recommendation
Update jsonata-js jsonata to the latest available version or apply a patch that prevents prototype manipulation.
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Original NVD description (English source)
A weakness has been identified in jsonata-js jsonata up to 2.2.0. The affected element is the function createFrame of the file src/jsonata.js of the component Function Binding Frame System. This manipulation causes improperly controlled modification of object prototype attributes. It is possible to initiate the attack remotely. The exploit has been made available to the public and could be used for attacks. The vendor was contacted early about this disclosure but did not respond in any way.
Vulnerability data from NVD (NIST) · CISA KEV · EPSS