CVE-2026-12208
mediumpriority · track · 0EPSS 0.003 · 24 %ileDEEUUSEPSS · scored 2026-10-27
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.
cvss
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · low–medium · 2.7–6.9
ssvc
A stakeholder decision — act, attend, or track — from exploitation and impact.
weaknesses
The CWE weakness classes this flaw belongs to.
affected products (9)
Products and version ranges known to be affected.
advisories (2)
Vendor and ecosystem advisories describing this.
- WID-SEC-W-2026-3505IBM App Connect Enterprise: Schwachstelle ermöglicht CodeausführungDeutsch2026-09-21csaf · cert_bundDE
Ein entfernter, anonymer Angreifer kann eine Schwachstelle in IBM App Connect Enterprise ausnutzen, um beliebigen Programmcode auszuführen.
- GHSA-663r-x48j-fg8pjsonata: Function Binding Prototype Pollution via hasOwnProperty Override2026-06-15ghsa · osvUS
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.
also known as (3)
Other names and identifiers for this entity.
sources
Which sources assert this record, and when.
references (16)
External citations — patches, advisories, analysis.
- https://github.com/OriginSecurityX/jsonata-hasownproperty-bypasscnnvd
- https://github.com/jsonata-js/jsonataPatchcnnvd
- https://vuldb.com/cve/CVE-2026-12208cnnvd
- https://vuldb.com/submit/832446cnnvd
- https://vuldb.com/vuln/370850cnnvd
- https://vuldb.com/vuln/370850/cticnnvd
- https://github.com/OriginSecurityX/jsonata-hasownproperty-bypassenisa_euvd
- https://vuldb.com/cve/CVE-2026-12208enisa_euvd
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