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.
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Fixes
Solution
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Workaround
No workaround given by the vendor.
References
History
Fri, 04 Sep 2026 14:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| First Time appeared |
Siyuan
Siyuan siyuan |
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| Vendors & Products |
Siyuan
Siyuan siyuan |
Fri, 04 Sep 2026 11:45:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | 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. | |
| Title | SiYuan before v3.8.2 Denial of Service via Auth Throttle | |
| First Time appeared |
B3log
B3log siyuan |
|
| Weaknesses | CWE-770 | |
| CPEs | cpe:2.3:a:b3log:siyuan:*:*:*:*:*:*:*:* | |
| Vendors & Products |
B3log
B3log siyuan |
|
| References |
| |
| Metrics |
cvssV3_1
|
Projects
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Status: PUBLISHED
Assigner: VulnCheck
Published:
Updated: 2026-09-04T11:29:52.121Z
Reserved: 2026-09-04T10:56:22.465Z
Link: CVE-2026-85584
No data.
Status : Received
Published: 2026-09-04T12:17:20.463
Modified: 2026-09-04T12:17:20.463
Link: CVE-2026-85584
No data.
OpenCVE Enrichment
Updated: 2026-09-04T14:15:07Z
Weaknesses