CVE-2026-109310SiYuan v3.1.12 before v3.8.6 Denial of Service via getDynamicIcon Template
Updated under an hour ago ()
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It affects siyuan-note siyuan. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
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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.
- CVSS
- 6.5 MEDIUM (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- Weakness (CWE)
- CWE-770
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- VulnCheck
- NVD analysis
- Deferred
- Record last updated
- Oct 13, 2026
- First seen by InfoSec Signals
- Oct 12, 2026
Affected products
siyuan-note siyuan siyuan_note:siyuan (from the name) | from 3.1.12 before 3.8.6; 3.8.6 not affected | CNA record |
References
- https://github.com/siyuan-note/siyuan/security/advisories/GHSA-cxwr-r7cq-xw52vendor-advisory
- https://www.vulncheck.com/advisories/siyuan-3.1.12-before-3.8.6-denial-of-service-via-getdynamicicon-templatethird-party-advisory
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.