CVE-2026-12208

MEDIUM

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

Title source: cna
STIX 2.1

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.

References (5)

Core 5
Core References
Third Party Advisory third-party-advisory
CVE-2026-12208 | CVE Analysis and Report
https://vuldb.com/cve/CVE-2026-12208
Vdb Entry, Technical Description vdb-entry technical-description
VDB-370850 | jsonata-js jsonata Function Binding Frame System jsonata.js createFrame prototype pollution
https://vuldb.com/vuln/370850
Signature, Permissions Required signature permissions-required
VDB-370850 | CTI Indicators (IOB, IOC, TTP, IOA)
https://vuldb.com/vuln/370850/cti
Third Party Advisory third-party-advisory
Submit #832446 | jsonata-js jsonata 2.2.0 Prototype Pollution
https://vuldb.com/submit/832446

Scores

CVSS v3 5.3
EPSS 0.0031
EPSS Percentile 22.9%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

CISA SSVC

Vulnrichment
Exploitation poc
Automatable yes
Technical Impact partial

Details

CWE
CWE-1321 CWE-94
Status published
Products (3)
jsonata-js/jsonata 2.0
jsonata-js/jsonata 2.1
jsonata-js/jsonata 2.2.0
Published Jun 15, 2026
Tracked Since Jun 15, 2026