{"id":"CVE-2026-66920","summary":"Pivotick - Stack Exhaustion Denial of Service via Deep or Cyclic Graph Data","details":"Pivotick contains an uncontrolled-recursion vulnerability when processing caller-supplied graph and node data. The affected graph algorithms recursively traversed graph edges, while the JSON viewer recursively processed each level of a node’s data structure. A specially crafted graph containing an excessively long path, deeply nested properties, or circular object references could therefore exhaust the JavaScript call stack when Pivotick calculates a layout or displays a node in the inspection modal.\n\nSuccessful exploitation may cause an uncaught exception, freeze the affected page, or crash the browser tab, resulting in a client-side denial of service. No confidentiality or integrity impact has been identified.\n\nThe patch replaces the recursive graph traversals with iterative stack-based implementations and limits the reachability calculation to 1,000,000 edge traversals. It also limits JSON rendering to 64 levels and detects circular references before descending further into an object.","modified":"2026-07-30T04:03:32.500719028Z","published":"2026-07-28T12:57:21.098Z","database_specific":{"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/66xxx/CVE-2026-66920.json","cna_assigner":"CIRCL","cwe_ids":["CWE-400","CWE-674"]},"references":[{"type":"WEB","url":"https://github.com/Pivotick/Pivotick/"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/66xxx/CVE-2026-66920.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-66920"},{"type":"FIX","url":"https://github.com/Pivotick/Pivotick/commit/66373141eb7892fc29a3b42cfb2c160af16765fe"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/pivotick/pivotick","events":[{"introduced":"0"},{"fixed":"66373141eb7892fc29a3b42cfb2c160af16765fe"}],"database_specific":{"extracted_events":[{"introduced":"0"},{"last_affected":"1.4.0"}],"source":["AFFECTED_FIELD","REFERENCES"]}}],"versions":["v1.4.0","v1.2.0","v1.1.0"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-66920.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V4","score":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:H/SC:N/SI:N/SA:H"}]}