jsonata: Function Binding Prototype Pollution via hasOwnProperty Override
GHSA-663r-x48j-fg8p · CVE-2026-12208
Published · Modified
AI SAST
Find this class of vulnerability in your own code
Corgea's AI-native static analysis detects vulnerabilities like this one across your repositories, ranks them by exploitability, and returns review-ready fixes.
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
- ADVISORY https://nvd.nist.gov/vuln/detail/CVE-2026-12208
- WEB https://github.com/jsonata-js/jsonata/pull/799
- WEB https://github.com/jsonata-js/jsonata/pull/806
- WEB https://github.com/jsonata-js/jsonata/commit/59e25144fc3b7125f6befd71b8a6e14e1fa610d2
- WEB https://github.com/jsonata-js/jsonata/commit/f09df8416eab8ff44926fc6527c80fb8701de159
- WEB https://github.com/OriginSecurityX/jsonata-hasownproperty-bypass
- PACKAGE https://github.com/jsonata-js/jsonata
- WEB https://github.com/jsonata-js/jsonata/releases/tag/v1.8.8
- WEB https://github.com/jsonata-js/jsonata/releases/tag/v2.2.1
- WEB https://vuldb.com/cve/CVE-2026-12208
- WEB https://vuldb.com/submit/832446
- WEB https://vuldb.com/vuln/370850
- WEB https://vuldb.com/vuln/370850/cti
Ready to move
Start Securing
Free, no credit card | First findings in minutes