CVE-2026-12208

jsonata-js jsonata Function Binding Frame System jsonata.js createFrame prototype pollution

MEDIUM
5.3
CVSS Score
Published: June 15, 2026 at 02:00 AM UTC
Updated: July 24, 2026 at 12:10 PM UTC
1 product affected across 1 vendorJsonata

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Severity
MEDIUM5.3
Exploit prediction
EPSS 0.3%
SSVC
PoC

Description

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (5)

VDB EntryTechnical Description
Source: cverecord
https://vuldb.com/vuln/370850
SignaturePermissions Required
Source: cverecord
https://vuldb.com/vuln/370850/cti
Third Party Advisory
Source: cverecord
https://vuldb.com/cve/CVE-2026-12208
Third Party Advisory
Source: cverecord
https://vuldb.com/submit/832446

SSVC — Action Prioritization

SSVCPoCAutomatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

5.3MEDIUMVulDB
Vector?

Quick Info

StatusDEFERRED
CWE
CWE-1321CWE-94

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