CVE-2026-12208

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.

• CWE-94
• CWE-1321

• https://github.com/OriginSecurityX/jsonata-hasownproperty-bypass
• https://vuldb.com/cve/CVE-2026-12208
• https://vuldb.com/submit/832446
• https://vuldb.com/vuln/370850
• https://vuldb.com/vuln/370850/cti

Published

Jun 15, 2026

Last Modified

Jul 24, 2026

Status

Deferred

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