{"id":"CVE-2026-109310","summary":"SiYuan v3.1.12 before v3.8.6 Denial of Service via getDynamicIcon Template","details":"SiYuan v3.1.12 before v3.8.6 fails to restrict the Sprig template function map in the /api/icon/getDynamicIcon content parameter, allowing resource exhaustion. A publish reader, or anyone when publish auth is disabled, can use uncapped functions like until to OOM-kill the kernel with one request.","aliases":["GHSA-cxwr-r7cq-xw52"],"modified":"2026-10-13T02:46:40.397767239Z","published":"2026-10-12T16:05:06.076Z","database_specific":{"cwe_ids":["CWE-770"],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/109xxx/CVE-2026-109310.json","cna_assigner":"VulnCheck"},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/109xxx/CVE-2026-109310.json"},{"type":"ADVISORY","url":"https://github.com/siyuan-note/siyuan/security/advisories/GHSA-cxwr-r7cq-xw52"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-109310"},{"type":"ADVISORY","url":"https://www.vulncheck.com/advisories/siyuan-3.1.12-before-3.8.6-denial-of-service-via-getdynamicicon-template"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/siyuan-note/siyuan","events":[{"introduced":"cb057f1e4f5a8b6f3402f03f470967fc2a56b3e2"},{"fixed":"158812497497c6fa8a6d1031bfa2f025a61ee5c2"}],"database_specific":{"source":"AFFECTED_FIELD","extracted_events":[{"introduced":"3.1.12"},{"fixed":"3.8.6"}]}}],"versions":["v3.8.6-beta.2","v3.8.6-beta.1","v3.8.6-alpha.10","v3.8.6-alpha.9","v3.8.6-alpha.8","v3.8.6-alpha.7","v3.8.6-alpha.4","v3.8.6-alpha.3","v3.8.6-alpha.2","v3.8.6-alpha.1","v3.8.5","v3.8.5-beta.5","v3.8.5-beta.3","v3.8.5-beta.2","v3.8.5-beta.1","v3.8.5-alpha.5","v3.8.5-alpha.3","v3.8.4","v3.8.4-beta.5","v3.8.4-beta.4","v3.8.4-beta.3","v3.8.3","v3.8.4-beta.2","v3.8.4-beta.1","v3.8.3-beta.1","v3.8.3-alpha.3","v3.8.3-alpha.2","v3.8.3-alpha.1","v3.8.2-alpha.6","v3.8.2-alpha.5","v3.8.2-alpha.4","v3.8.2-alpha.3","v3.8.2-alpha.1","v3.8.1","v3.8.1-beta.6","v3.8.1-beta.5","v3.8.1-beta.4","v3.8.1-beta.1","v3.8.0","v3.8.0-beta.2","v3.8.0-alpha.4","v3.8.0-alpha.3","v3.8.0-alpha.2","v3.7.4-alpha.4","v3.7.4-alpha.2","v3.7.3","v3.7.3-beta.2","v3.7.3-beta.1","v3.7.0-rc.2","v3.7.0-rc.1","v3.6.5","v3.7.0-dev12","v3.7.0-dev8","v3.7.0-dev5","v3.7.0-dev2","v3.6.5-dev2","v3.6.4","v3.6.4-dev2","v3.6.3","v3.6.2","v3.6.1","v3.6.0","v3.5.10","v3.5.9","v3.5.8","v3.5.8-dev2","v3.5.7","v3.5.5","v3.5.4","v3.5.4-dev5","v3.5.4-dev3","v3.5.4-dev2","v3.5.4-dev1","v3.5.3","v3.5.3-dev5","v3.5.3-dev4","v3.5.3-dev3","v3.5.3-dev2","v3.5.2","v3.5.2-dev2","v3.5.2-dev1","v3.5.1","v3.5.1-dev2","v3.5.1-dev1","v3.5.0","v3.5.0-dev2","v3.5.0-dev1","v3.4.2","v3.4.2-dev1","v3.4.1","v3.4.1-dev1","v3.4.0","v3.4.0-dev5","v3.4.0-dev4","v3.4.0-dev3","v3.4.0-dev2","v3.4.0-dev1","v3.3.6","v3.3.6-dev2","v3.3.6-dev1","v3.3.5","v3.3.4","v3.3.4-dev2","v3.3.4-dev1","v3.3.3","v3.3.3-dev5","v3.3.3-dev4","v3.3.3-dev3","v3.3.3-dev2","v3.3.3-dev1","v3.3.2","v3.3.2-dev2","v3.3.2-dev1","v3.3.1","v3.3.0","v3.3.0-dev4","v3.3.0-dev3","v3.2.1","v3.2.1-dev6","v3.2.1-dev5","v3.2.1-dev4","v3.2.1-dev3","v3.2.1-dev2","v3.2.0-dev10","v3.2.0-dev9","v3.2.0-dev8","v3.2.0-dev6","v3.2.0-dev4","v3.2.0-dev3","v3.2.0-dev2","v3.2.0-dev1","v3.1.32","v3.1.32-dev2","v3.1.31","v3.1.30","v3.1.30-dev1","v3.1.29","v3.1.29-dev3","v3.1.28","v3.1.28-dev3","v3.1.28-dev2","v3.1.27","v3.1.27-dev4","v3.1.27-dev2","v3.1.27-dev1","v3.1.26","v3.1.26-dev3","v3.1.26-dev2","v3.1.26-dev1","v3.1.25","v3.1.25-dev6","v3.1.25-dev4","v3.1.25-dev3","v3.1.24","v3.1.23","v3.1.22","v3.1.22-dev2","v3.1.22-dev1","v3.1.21","v3.1.21-dev4","v3.1.21-dev3","v3.1.21-dev1","v3.1.20","v3.1.20-dev4","v3.1.20-dev3","v3.1.19","v3.1.19-dev3","v3.1.18","v3.1.17","v3.1.16","v3.1.15","v3.1.15-dev3","v3.1.15-dev1","v3.1.14","v3.1.14-dev2","v3.1.13","v3.1.12"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-109310.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V4","score":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N"}]}