{"id":"CVE-2026-107216","summary":"Excelize ANCHORARRAY: mutually-referencing array formulas recurse unboundedly via re-entrant CalcCellValue, causing a fatal stack overflow","details":"Excelize is a Go language library for reading and writing Microsoft Excel spreadsheets. From 2.8.1 to 2.11.0, ANCHORARRAY recursively calls the exported CalcCellValue function, creating a fresh calculation context at each cycle and bypassing in-flight and iteration controls. ANCHORARRAY calls CalcCellValue instead of cellResolver, so each recursive hop receives a new calcContext and loses cycle state. When mutually referencing dynamic-array formulas are evaluated directly or through formula-evaluating APIs, each recursion hop resets the cycle budget and prevents completion-based caches from breaking the cycle, allowing an attacker to cause a fatal Go stack overflow and abort the process. No fixed version is available as of this review.","aliases":["GHSA-wp2g-vpjj-g53r"],"modified":"2026-10-09T02:49:20.520918154Z","published":"2026-10-07T17:51:31.980Z","database_specific":{"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/107xxx/CVE-2026-107216.json","cna_assigner":"GitHub_M","cwe_ids":["CWE-674"]},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/107xxx/CVE-2026-107216.json"},{"type":"ADVISORY","url":"https://github.com/qax-os/excelize/security/advisories/GHSA-wp2g-vpjj-g53r"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-107216"},{"type":"FIX","url":"https://github.com/qax-os/excelize/commit/ea12859e43c64d498ecf839263c5f917391f3316"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/qax-os/excelize","events":[{"introduced":"688808b2b4f7bb1f338991c810cd2ee6a7bb1451"},{"fixed":"ea12859e43c64d498ecf839263c5f917391f3316"}],"database_specific":{"extracted_events":[{"introduced":"2.8.1"},{"last_affected":"2.11.0"}],"source":["AFFECTED_FIELD","REFERENCES"]}}],"versions":["v2.11.0","v2.10.1","v2.10.0","v2.9.1","v2.9.0","v2.8.1"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-107216.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"}]}