Bug 2488807 (CVE-2026-12208)

Summary: CVE-2026-12208 jsonata: jsonata-js jsonata Function Binding Frame System jsonata.js createFrame prototype pollution
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security <prodsec-ir-bot>
Status: NEW --- QA Contact:
Severity: medium Docs Contact:
Priority: medium    
Version: unspecifiedCC: aazores, anujha, asoldano, bbaranow, bmaxwell, bstansbe, cmah, dhanak, dlofthou, drosa, dsimansk, eaguilar, ebaron, istudens, ivassile, iweiss, jolong, kingland, mnovotny, mosmerov, msvehla, nwallace, pesilva, pjindal, pmackay, rstancel, sausingh, thjenkin, vdosoudi
Target Milestone: ---Keywords: Security
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Hardware: All   
OS: Linux   
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A flaw was found in the jsonata JavaScript library. A prototype pollution vulnerability exists in the createFrame function in src/jsonata.js, allowing a remote attacker to manipulate object prototype attributes. This could lead to unauthorized modification of application behavior.
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
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Description OSIDB Bzimport 2026-06-15 03:01:17 UTC 
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.