{"id":"CVE-2026-107219","revision":"b573b3c1b05b4aab967801cc474bfcae","records":[{"revision":"b573b3c1b05b4aab967801cc474bfcae","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-107219","aliases":[],"title":"Excelize: Unbounded spinCount in agile decryption burns CPU during OpenFile","description":"Excelize is a Go language library for reading and writing Microsoft Excel spreadsheets. From 2.3.1 to 2.11.0, agile decryption accepts an attacker-controlled spinCount and performs that many password-key derivation iterations before verifier validation. OpenFile reaches agileDecrypt, which passes the unbounded spinCount to convertPasswdToKey before password verification. When a crafted OLE encrypted-workbook header supplies an excessive spinCount and the file is opened, the key-derivation loop performs unbounded attacker-selected work and cannot be cancelled, allowing an attacker to consume a CPU core for an attacker-controlled duration. No fixed version is available as of this review.","state":0,"publishedAt":"2026-10-07T18:33:34.46+00:00","modifiedAt":"2026-10-07T19:45:16.819+00:00","affected":[{"ecosystem":"Vendor product","name":"excelize","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"qax-os\",\n                    \"product\": \"excelize\",\n                    \"versions\": [\n                        {\n                            \"version\": \">= 2.3.1, <= 2.11.0\",\n                            \"status\": \"affected\"\n                        }\n                    ]\n                }"}],"metrics":[{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","score":7.5,"severity":"HIGH"}],"references":["https://github.com/qax-os/excelize/security/advisories/GHSA-jrfj-fhj2-jjvm","https://github.com/qax-os/excelize/pull/2389","https://github.com/qax-os/excelize/commit/2badfcd5841d0d88b0ffea119f5a2f3c53b4910b"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-107219","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-107219","identifiers":["CVE-2026-107219"]},"retained":false,"historicalAffected":[]}],"coverage":[]}