{"id":"CVE-2026-35599","revision":"56d70a0c56794ce28c25c145b62c9852","records":[{"revision":"56d70a0c56794ce28c25c145b62c9852","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-35599","aliases":[],"title":"Vikunja has an Algorithmic Complexity DoS in Repeating Task Handler","description":"Vikunja is an open-source self-hosted task management platform. Prior to 2.3.0, the addRepeatIntervalToTime function uses an O(n) loop that advances a date by the task's RepeatAfter duration until it exceeds the current time. By creating a repeating task with a 1-second interval and a due date far in the past, an attacker triggers billions of loop iterations, consuming CPU and holding a database connection for minutes per request. This vulnerability is fixed in 2.3.0.","state":0,"publishedAt":"2026-04-10T16:05:57.581+00:00","modifiedAt":"2026-04-10T18:28:29.31+00:00","affected":[{"ecosystem":"Vendor product","name":"vikunja","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"go-vikunja\",\n                    \"product\": \"vikunja\",\n                    \"versions\": [\n                        {\n                            \"version\": \"< 2.3.0\",\n                            \"status\": \"affected\"\n                        }\n                    ]\n                }"}],"metrics":[{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","score":6.5,"severity":"MEDIUM"}],"references":["https://github.com/go-vikunja/vikunja/security/advisories/GHSA-r4fg-73rc-hhh7","https://github.com/go-vikunja/vikunja/pull/2577","https://github.com/go-vikunja/vikunja/commit/6df0d6c8f54b01db6464c42810e40e55f12b481b","https://github.com/go-vikunja/vikunja/releases/tag/v2.3.0"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-35599","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-35599","identifiers":["CVE-2026-35599"]},"retained":false,"historicalAffected":[]}],"coverage":[]}