{"id":"CVE-2026-85581","aliases":["GHSA-wv96-wmf5-xvj2"],"url":"https://o3.security/vulnerability/CVE-2026-85581","summary":"SiYuan before v3.8.2 Denial of Service via unauthenticated UI-process registration","details":"SiYuan before v3.8.2 contains a denial of service vulnerability in the unauthenticated /api/system/uiproc endpoint that accepts and retains attacker-controlled process identifiers without size limits or authentication. Attackers can send repeated requests with unique identifiers to exhaust process memory and degrade service availability.","published":"2026-09-04T11:29:50.151Z","modified":"2026-09-05T03:48:33.459566961Z","cvss":null,"epss":null,"cisaKev":null,"exploitsKnown":null,"affectedPackages":[],"fix":null,"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/85xxx/CVE-2026-85581.json"},{"type":"ADVISORY","url":"https://github.com/siyuan-note/siyuan/security/advisories/GHSA-wv96-wmf5-xvj2"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-85581"},{"type":"ADVISORY","url":"https://www.vulncheck.com/advisories/siyuan-before-3.8.2-denial-of-service-via-unauthenticated-ui-process-registration"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-09-05T03:48:33.459566961Z"}}