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.

Metrics

Attack Vector Network

Attack Complexity Low

Privileges Required None

Attack Requirements None

User Interaction None

Vulnerable System Confidentiality Impact None

Vulnerable System Integrity Impact Low

Vulnerable System Availability Impact None

Subsequent System Confidentiality Impact None

Subsequent System Integrity Impact None

Subsequent System Availability Impact None

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact None

Integrity Impact Low

Availability Impact None

User Interaction None

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact None

Integrity Impact Low

Availability Impact None

User Interaction None

Access Vector Network

Access Complexity Low

Authentication None

Confidentiality Impact None

Integrity Impact Partial

Availability Impact None

AV:N/AC:L/Au:N/C:N/I:P/A:N/E:POC/RL:ND/RC:UR

This CVE is not in the KEV list.

Exploitation poc

Automatable yes

Technical Impact partial

Affected Vendors & Products

Vendors Products
Jsonata-js
  • Jsonata

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No data.

References
Link Providers
https://github.com/OriginSecurityX/jsonata-hasownproperty-bypass cve-icon cve-icon
https://vuldb.com/cve/CVE-2026-12208 cve-icon cve-icon
https://vuldb.com/submit/832446 cve-icon cve-icon
https://vuldb.com/vuln/370850 cve-icon cve-icon
https://vuldb.com/vuln/370850/cti cve-icon cve-icon
History

Mon, 15 Jun 2026 21:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Mon, 15 Jun 2026 03:00:00 +0000

Type Values Removed Values Added
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.
Title jsonata-js jsonata Function Binding Frame System jsonata.js createFrame prototype pollution
First Time appeared Jsonata-js
Jsonata-js jsonata
Weaknesses CWE-1321
CWE-94
CPEs cpe:2.3:a:jsonata-js:jsonata:*:*:*:*:*:*:*:*
Vendors & Products Jsonata-js
Jsonata-js jsonata
References
Metrics cvssV2_0

{'score': 5, 'vector': 'AV:N/AC:L/Au:N/C:N/I:P/A:N/E:POC/RL:ND/RC:UR'}

cvssV3_0

{'score': 5.3, 'vector': 'CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N/E:P/RL:X/RC:R'}

cvssV3_1

{'score': 5.3, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N/E:P/RL:X/RC:R'}

cvssV4_0

{'score': 6.9, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:P'}
cve-icon MITRE

Status: PUBLISHED

Assigner: VulDB

Published: 2026-06-15T02:00:08.916Z

Updated: 2026-06-15T19:25:11.446Z

Reserved: 2026-06-14T12:25:38.149Z

Link: CVE-2026-12208

cve-icon Vulnrichment

Updated: 2026-06-15T15:59:11.532Z

cve-icon NVD

Status : Deferred

Published: 2026-06-15T03:16:23.993

Modified: 2026-06-15T20:42:32.707

Link: CVE-2026-12208

cve-icon Redhat

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