CVE-2026-32110 json
SiYuan has a Full-Read SSRF via /api/network/forwardProxy
published 2026-03-11 7 mo ago modified 2026-11-05 3 d ago also GHSA-56cv-c5p2-j2wg , GO-2026-4685 , EUVD-2026-11381
- cvss
- 8.3
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.4%
- EPSS 0.4% chance of exploitation in 30 days, percentile 31%
- public exploits
- 0
- none known
Summary
SiYuan is a personal knowledge management system. Prior to 3.6.0, the /api/network/forwardProxy endpoint allows authenticated users to make arbitrary HTTP requests from the server. The endpoint accepts a user-controlled URL and makes HTTP requests to it, returning the full response body and headers. There is no URL validation to prevent requests to internal networks, localhost, or cloud metadata services. This vulnerability is fixed in 3.6.0.
Patch / fix
- go github.com/siyuan-note/siyuan/kernel 3.6.0
- b3log siyuan 3.6.0
- govulncheck-vulndb openSUSE Leap 15.6 0.0.20260317T205859-150000.1.152.1
suse advisories SUSE-SU-2026:1042-1
- govulncheck-vulndb openSUSE Leap 16.0 0.0.20260723T184607-160000.1.1
opensuse advisories openSUSE-SU-2026:21483-1
CISA SSVC
- Exploitation
- Proof of concept is public
- Automatable
- no
- Technical impact
- total
- Assessed
- 7 mo ago
Exploit prediction
0.38% chance of exploitation in the next 30 days, higher than 31% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- github.com https://github.com/siyuan-note/siyuan/security/advisories/GHSA-56cv-c5p2-j2wg referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 8.3 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:L |
| GitHub | 3.1 | 8.3 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:L |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| go | github.com/siyuan-note/siyuan/kernel | <3.6.0 all versions |
3.6.0 |
Affected products
- siyuan-note siyuan
Classification
- Weakness
-
- CWE-918 Server-Side Request Forgery
References
-
github.com
/siyuan-note/siyuan/commit/3284e10028de39c8afc21b020498144714503fe1
web
-
github.com
/siyuan-note/siyuan/security/advisories/GHSA-56cv-c5p2-j2wg
web, exploit, vendor-advisory, advisory
-
nvd.nist.gov
/vuln/detail/CVE-2026-32110
advisory
-
github.com
/siyuan-note/siyuan
package
Sources
- CVE List CVE-2026-32110
- GitHub Advisory GHSA-56cv-c5p2-j2wg
- NVD CVE-2026-32110
- OSV GO-2026-4685
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.