CVE-2026-85584 — SiYuan before v3.8.2 Denial of Service via Auth Throttle
SiYuan versions before v3.8.2 contain a denial of service vulnerability in the publish-service Basic Auth throttle that stores failed-attempt state using attacker-controlled use…
Published: 2026-09-04 · CVSS: 8.7 · CVSS 4.0
SiYuan versions before v3.8.2 contain a denial of service vulnerability in the publish-service Basic Auth throttle that stores failed-attempt state using attacker-controlled usernames without enforcing capacity limits or eviction policies. Unauthenticated attackers can submit repeated authentication requests with unique invalid usernames to exhaust memory and increase synchronization overhead, degrading service availability.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7