CVE-2026-109310
SiYuan v3.1.12 before v3.8.6 Denial of Service via getDynamicIcon Template
- State
- Published
- Severity
- 7.1 High
- Published
- Oct 12, 2026
- Updated
- Oct 13, 2026
- Reserved
- Oct 12, 2026
Description
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 7.1 High | 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 | VulnCheck |
| 3.1 | 6.5 Medium | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H | VulnCheck |
Weaknesses
- CWE-770 Allocation of Resources Without Limits or Throttling
Affected Products
| Product | Versions |
|---|---|
siyuansiyuan-note |
|
References
- GitHub Security Advisory (GHSA-cxwr-r7cq-xw52)vendor-advisory
- VulnCheck Advisory: SiYuan v3.1.12 before v3.8.6 Denial of Service via getDynamicIcon Templatethird-party-advisory
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