CVE-2026-12208
MEDIUMjsonata-js jsonata Function Binding Frame System jsonata.js createFrame prototype pollution
Title source: cnaDescription
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