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The vulnerability is explicitly tied to _.mergeDeep in the CVE title and PoC examples. Additional functions (_ModuleSupport.jsonApply, _ModuleSupport.setPath, _Util.jsonApply) are documented in enterprise package Gists as attack vectors. All listed functions handle object merging/path assignment without proper prototype protection, as demonstrated by reproducible PoCs. The AG Grid team's patch (PR #8290) confirms fixes to key handling in merge operations, validating these functions as vulnerable.
| Package Name | Ecosystem | Vulnerable Versions | First Patched Version |
|---|---|---|---|
| ag-grid-enterprise | npm | < 31.3.4 | 31.3.4 |
| ag-grid-community | npm | < 31.3.4 | 31.3.4 |
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