CVE-2026-12208 Details
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.
A prototype pollution vulnerability has been identified in jsonata-js versions through 2.2.0. The issue arises in the Function Binding Frame System, specifically within the createFrame function in src/jsonata.js. This vulnerability allows for improper control over the modification of object prototype attributes, which can be exploited remotely. The vulnerability has been publicly disclosed, and a proof of concept is available.
Metrics
CVSS 4.0 Severity and Vector Strings:
VolerionCVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
Volerion
Assessed Jun 15, 2026CISA-ADP
Assessed Jun 15, 2026References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://github.com/OriginSecurityX/jsonata-hasownproperty-bypass | [email protected] | ExploitTechnical Description |
| https://vuldb.com/cve/CVE-2026-12208 | [email protected] | AdvisoryPermission Required |
| https://vuldb.com/submit/832446 | [email protected] | Issue TrackingPermission Required |
| https://vuldb.com/vuln/370850 | [email protected] | AdvisoryPermission Required |
| https://vuldb.com/vuln/370850/cti | [email protected] | AdvisoryPermission Required |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-1321 | Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution') | [email protected] |
| CWE-94 | Improper Control of Generation of Code ('Code Injection') | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| jsonata-js jsonata | <= 2.2.0 (semver) |
CPE
Remediation
| |
Change History
5 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jul 24, 2026 | CVE Translated | [email protected] |
| Jul 23, 2026 | CVE Translated | [email protected] |
| Jun 17, 2026 | CVE Modified | [email protected] |
| Jun 17, 2026 | CVE Modified | CISA-ADP |
| Jun 15, 2026 | New CVE Received | [email protected] |