CVE-2026-33669 json
SiYuan has Arbitrary Document Reading within the Publishing Service
published 2026-03-25 7 mo ago modified 2026-06-17 4 mo ago also EUVD-2026-16432 , GHSA-34xj-66v3-6j83 , GO-2026-4842
- cvss
- 9.8
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.5%
- EPSS 0.5% chance of exploitation in 30 days, percentile 45%
- public exploits
- 0
- none known
Summary
SiYuan is a personal knowledge management system. Prior to version 3.6.2, document IDs were retrieved via the /api/file/readDir interface, and then the /api/block/getChildBlocks interface was used to view the content of all documents. Version 3.6.2 patches the issue.
Patch / fix
- b3log siyuan 3.6.2
- govulncheck-vulndb openSUSE Leap 15.6 0.0.20260326T203309-150000.1.155.2
suse advisories SUSE-SU-2026:1135-1
- 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
0.53% chance of exploitation in the next 30 days, higher than 45% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- github.com https://github.com/siyuan-note/siyuan/security/advisories/GHSA-34xj-66v3-6j83 referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| GitHub | 3.1 | 9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| NVD | 3.1 | 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| go | github.com/siyuan-note/siyuan/kernel | <=0.0.0-20260317012524-fe4523fff2c8 all versions |
no fix listed |
Affected products
- siyuan-note siyuan
Classification
- Weakness
-
- CWE-125 Out-of-bounds Read
References
-
github.com
/siyuan-note/siyuan/security/advisories/GHSA-34xj-66v3-6j83
web, exploit, vendor-advisory, advisory
-
nvd.nist.gov
/vuln/detail/CVE-2026-33669
advisory
-
github.com
/siyuan-note/siyuan
package
Sources
- CVE List CVE-2026-33669
- GitHub Advisory GHSA-34xj-66v3-6j83
- NVD CVE-2026-33669
- OSV GO-2026-4842
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.
CPEs and fixed versions use Anchore's correction of NVD's data: Added CPE configurations because not yet analyzed by NVD.