# B3log Siyuan vulnerabilities

Source: https://junglewise.ai/threats/technologies/b3log-siyuan  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Updated: 9 November 2026, 03:07 UTC. Rebuilt every hour.  
Data: https://junglewise.ai/threats/technologies/b3log-siyuan.json  
License: CC BY 4.0 with a link back

Junglewise Threat Intelligence has tracked 3 vulnerabilities in B3log Siyuan: 1 in the last 7 days and 1 in the last 90 days, 0 of them critical and 0 exploited in the wild. The most recent, CVE-2026-123492, was published on 6 November 2026. 1 vulnerability in the last four weeks, up from none in the four before.

## Counts

- Last 7 days: 1
- Last 30 days: 1
- Last 90 days: 1
- All time: 3 (0 critical, 0 exploited in the wild)

## About B3log Siyuan

Personal knowledge management system supporting markdown notes, databases, and local storage.

## Latest B3log Siyuan vulnerabilities

- [CVE-2026-123492: SiYuan nil pointer dereference in MCP privateCacheMiddleware](https://junglewise.ai/threats/cve-2026-123492-siyuan-before-3-8-9-contains-a-nil-pointer-dereference) (medium, CVSS 4.9, published 6 Nov 2026)
- [CVE-2025-68948: SiYuan is self-hosted, open source personal knowledge management software. In versions 3.5.1 and prior, the SiYuan…](https://junglewise.ai/threats/cve-2025-68948-siyuan-is-self-hosted-open-source-personal-knowledge-management) (high, CVSS 8.1, published 27 Dec 2025)
- [CVE-2025-67488: GO-2025-4221 - SiYuan: ZipSlip -> Arbitrary File Overwrite -> RCE in github.com/siyuan-note/siyuan/kernel](https://junglewise.ai/threats/cve-2025-67488-siyuan-zipslip-arbitrary-file-overwrite-rce) (high, CVSS 7.8, published 9 Dec 2025)

## Most severe B3log Siyuan vulnerabilities

- [CVE-2025-68948: SiYuan is self-hosted, open source personal knowledge management software. In versions 3.5.1 and prior, the SiYuan…](https://junglewise.ai/threats/cve-2025-68948-siyuan-is-self-hosted-open-source-personal-knowledge-management) (high, CVSS 8.1, published 27 Dec 2025)
- [CVE-2025-67488: GO-2025-4221 - SiYuan: ZipSlip -> Arbitrary File Overwrite -> RCE in github.com/siyuan-note/siyuan/kernel](https://junglewise.ai/threats/cve-2025-67488-siyuan-zipslip-arbitrary-file-overwrite-rce) (high, CVSS 7.8, published 9 Dec 2025)
- [CVE-2026-123492: SiYuan nil pointer dereference in MCP privateCacheMiddleware](https://junglewise.ai/threats/cve-2026-123492-siyuan-before-3-8-9-contains-a-nil-pointer-dereference) (medium, CVSS 4.9, published 6 Nov 2026)

## Vulnerabilities per week

1 vulnerability in the last four weeks, up from none in the four before.

| Week of | Vulns | Critical | Exploited |
| --- | --- | --- | --- |
| 17 Aug 2026 | 0 | 0 | 0 |
| 24 Aug 2026 | 0 | 0 | 0 |
| 31 Aug 2026 | 0 | 0 | 0 |
| 7 Sep 2026 | 0 | 0 | 0 |
| 14 Sep 2026 | 0 | 0 | 0 |
| 21 Sep 2026 | 0 | 0 | 0 |
| 28 Sep 2026 | 0 | 0 | 0 |
| 5 Oct 2026 | 0 | 0 | 0 |
| 12 Oct 2026 | 0 | 0 | 0 |
| 19 Oct 2026 | 0 | 0 | 0 |
| 26 Oct 2026 | 0 | 0 | 0 |
| 2 Nov 2026 | 1 | 0 | 0 |
| 9 Nov 2026 | 0 | 0 | 0 |

## Sources

NVD, GitHub Security Advisories, OSV, the CISA Known Exploited Vulnerabilities catalog, FIRST EPSS and vendor advisories. Rebuilt every hour. Cite as: Junglewise Threat Intelligence, "B3log Siyuan vulnerabilities", https://junglewise.ai/threats/technologies/b3log-siyuan, 9 November 2026.