CVE-2026-12208 (GCVE-0-2026-12208)

Vulnerability from cvelistv5 – Published: 2026-06-15 02:00 – Updated: 2026-06-15 19:25
VLAI
Title
jsonata-js jsonata Function Binding Frame System jsonata.js createFrame prototype pollution
Summary
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.
Severity
6.9 (Medium)
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
5.3 (Medium)
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
5.3 (Medium)
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
SSVC
Exploitation: poc Automatable: yes Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
  • CWE-1321 - Improperly Controlled Modification of Object Prototype Attributes
  • CWE-94 - Code Injection
Assigner
References
URL Tags
https://vuldb.com/vuln/370850 vdb-entrytechnical-description
https://vuldb.com/vuln/370850/cti signaturepermissions-required
https://vuldb.com/cve/CVE-2026-12208 third-party-advisory
https://vuldb.com/submit/832446 third-party-advisory
https://github.com/OriginSecurityX/jsonata-hasown… exploit
Impacted products
Vendor Product Version
jsonata-js jsonata Affected: 2.0
Affected: 2.1
Affected: 2.2.0
    cpe:2.3:a:jsonata-js:jsonata:*:*:*:*:*:*:*:*
 Create a notification for this product.
Credits
Frederick (VulDB User) VulDB CNA Team
Show details on NVD website
To clipboard 

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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.