PT-2026-49170 · Jsonata · Jsonata

Frederick · Published 2026-06-15 · Updated 2026-06-15 · CVE-2026-12208

NVD

CVSS v2.0

5.0

Medium

Base vector

AV:N/AC:L/Au:N/C:N/I:P/A:N

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.

Exploit

Fix

Prototype Pollution

Code Injection

Weakness Enumeration

CWE-1321

CWE-94

Related Identifiers

CVE-2026-12208

Affected Products

Jsonata

References · 6

• 🔥 https://github.com/OriginSecurityX/jsonata-hasownproperty-bypass · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2026-12208 · Security Note
• https://vuldb.com/submit/832446 · Note
• https://vuldb.com/vuln/370850/cti · Note
• https://vuldb.com/vuln/370850 · Note
• https://vuldb.com/cve/CVE-2026-12208 · Note