{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-66922", "assignerOrgId": "5a6e4751-2f3f-4070-9419-94fb35b644e8", "state": "PUBLISHED", "assignerShortName": "CIRCL", "dateReserved": "2026-07-28T13:20:04.049Z", "datePublished": "2026-07-28T13:20:08.962Z", "dateUpdated": "2026-07-28T14:18:05.141Z"}, "containers": {"cna": {"affected": [{"defaultStatus": "unaffected", "product": "pivotick", "repo": "https://github.com/Pivotick/Pivotick/", "vendor": "pivotick", "versions": [{"lessThanOrEqual": "1.4.0", "status": "affected", "version": "0", "versionType": "semver"}]}], "credits": [{"lang": "en", "type": "finder", "value": "Jeroen Pinoy"}, {"lang": "en", "type": "remediation developer", "value": "Sami Mokaddem"}], "descriptions": [{"lang": "en", "supportingMedia": [{"base64": false, "type": "text/html", "value": "<p>Pivotick used plain JavaScript objects as lookup tables indexed by caller-controlled graph node identifiers in its tree-layout and cycle-detection components.</p><p>Node identifiers matching properties inherited from <code>Object.prototype</code>, such as <code>constructor</code>, <code>toString</code>, or <code>__proto__</code>, were not handled as ordinary identifiers. These values could be interpreted as existing inherited properties, resolve to values of an unexpected type, or\u2014in the case of <code>__proto__</code> assignments\u2014modify the prototype of an internal lookup object.</p><p>An attacker who can supply graph data containing crafted node identifiers could consequently cause nodes or edges to be silently omitted, produce incorrect hierarchy levels, bypass or corrupt cycle-detection results, or trigger an exception that interrupts graph processing and rendering. This affects the integrity of graph visualisations and analytics and may cause a client-side denial-of-service condition.</p><p>The affected code also failed to safely handle edges whose source node was absent from the supplied node set. 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