CVE-2026-59809 - CERT CVE
ID CVE-2026-59809
Sažetak SiYuan before v3.8.0 interpolates secret placeholders into the destination URL parameter of the http_request MCP tool, allowing attackers to exfiltrate stored secrets. An MCP client can craft a request with an attacker-controlled URL containing secret placeholders to send plaintext secret values to any public host without confirmation.
Reference
CVSS
Base: 4.9
Impact: 3.6
Exploitability:1.2
Pristup
VektorSloženostAutentikacija
NETWORK LOW HIGH
Impact
PovjerljivostCjelovitostDostupnost
HIGH NONE NONE
CVSS vektor CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N
Zadnje važnije ažuriranje 22-08-2026 - 13:16
Objavljeno 22-08-2026 - 13:16