CVE-2026-73049 json
SiYuan before v3.7.4 Information Disclosure via getAttributeViewBacklinks
published 2026-08-14 2 mo ago modified 2026-11-05 3 d ago also GHSA-p4qw-vx5p-g984 , GO-2026-6833 , EUVD-2026-58618
- cvss
- 5.8
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.3%
- EPSS 0.3% chance of exploitation in 30 days, percentile 25%
- public exploits
- 0
- none known
Summary
SiYuan versions before v3.7.4 contain an information disclosure vulnerability in the getAttributeViewBacklinks endpoint that consults the forbidden access list instead of the visibility list when filtering backlinks. Anonymous readers can supply a publicly visible database row identifier to discover hidden-tier documents that reference it, receiving the database name, row title, and document path of hidden documents.
Patch / fix
- go github.com/siyuan-note/siyuan/kernel 0.0.0-20260730150429-5b42614311b0
- siyuan-note siyuan 3.7.4
CISA SSVC
- Exploitation
- Proof of concept is public
- Automatable
- yes
- Technical impact
- partial
- Assessed
- 2 mo ago
Exploit prediction
0.33% chance of exploitation in the next 30 days, higher than 25% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- github.com https://github.com/siyuan-note/siyuan/security/advisories/GHSA-p4qw-vx5p-g984 referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 4.0 | 6.9 | CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:L/SI:N/SA:N |
| CNA | 3.1 | 5.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:N/A:N |
| CNA | 4.0 | 6.9 | CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:L/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X |
| GitHub | 3.1 | 5.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:N/A:N |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| go | github.com/siyuan-note/siyuan/kernel | <0.0.0-20260730150429-5b42614311b0 |
0.0.0-20260730150429-5b42614311b0 |
Affected products
- siyuan-note siyuan
Classification
- Weakness
-
- CWE-863 Incorrect Authorization
References
-
github.com
/siyuan-note/siyuan/commit/5b42614311b0afda29ccc65e55d74bf3e8cc9054
web
-
github.com
/siyuan-note/siyuan/security/advisories/GHSA-p4qw-vx5p-g984
vendor-advisory, exploit, web, advisory
-
vulncheck.com
/advisories/siyuan-before-information-disclosure-via-getattributeviewbacklinks
third-party-advisory, web
-
nvd.nist.gov
/vuln/detail/CVE-2026-73049
advisory
-
github.com
/siyuan-note/siyuan
package
-
github.com
/siyuan-note/siyuan/releases/tag/v3.7.4-alpha.4
web
Sources
- CVE List CVE-2026-73049
- GitHub Advisory GHSA-p4qw-vx5p-g984
- NVD CVE-2026-73049
- OSV GO-2026-6833
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