GHSA-663r-x48j-fg8p

Suggest an improvement
Source
https://github.com/advisories/GHSA-663r-x48j-fg8p
Import Source
https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/06/GHSA-663r-x48j-fg8p/GHSA-663r-x48j-fg8p.json
JSON Data
https://api.osv.dev/v1/vulns/GHSA-663r-x48j-fg8p
Aliases
  • CVE-2026-12208
Downstream
Published
2026-06-15T03:30:32Z
Modified
2026-09-08T17:56:07Z
Severity
  • 5.3 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N CVSS Calculator
  • 5.5 (Medium) CVSS_V4 - 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 CVSS Calculator
Summary
jsonata: Function Binding Prototype Pollution via hasOwnProperty Override
Details

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.

Database specific 
{
    "cwe_ids": [
        "CWE-94"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2026-09-08T17:36:19Z",
    "nvd_published_at": "2026-06-15T03:16:23Z",
    "severity": "MODERATE"
}
References

Affected packages

npm / jsonata

Package

Name
jsonata
View open source insights on deps.dev
Purl
pkg:npm/jsonata

Affected ranges

Type
SEMVER
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
1.8.8

Database specific

source 
"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/06/GHSA-663r-x48j-fg8p/GHSA-663r-x48j-fg8p.json"

npm / jsonata

Package

Name
jsonata
View open source insights on deps.dev
Purl
pkg:npm/jsonata

Affected ranges

Type
SEMVER
Events
Introduced
2.0.0
Fixed
2.2.1

Database specific

source 
"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/06/GHSA-663r-x48j-fg8p/GHSA-663r-x48j-fg8p.json"