CVE-2026-72792
SiYuan before v3.7.4 Information Disclosure via Tag API
Description
SiYuan before v3.7.4 contains an information disclosure vulnerability in the /api/tag/getTag endpoint that returns tag labels and occurrence counts from password-protected documents to unauthenticated readers. Attackers can enumerate tag vocabulary and internal terminology from password-protected documents by calling the tag endpoint without providing the document's publish password.
INFO
Published Date :
Aug. 12, 2026, 8:17 p.m.
Last Modified :
Oct. 24, 2026, 3:10 p.m.
Remotely Exploit :
Yes !
Source :
[email protected]
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS | 134c704f-9b21-4f2e-91b3-4a467353bcc0 | |||||
| CVSS 3.1 | MEDIUM | 83251b91-4cc7-4094-a5c7-464a1b83ea10 | ||||
| CVSS 3.1 | MEDIUM | [email protected] | ||||
| CVSS 3.1 | MEDIUM | MITRE-CVE | ||||
| CVSS 4.0 | MEDIUM | 83251b91-4cc7-4094-a5c7-464a1b83ea10 | ||||
| CVSS 4.0 | MEDIUM | [email protected] |
Solution
- Update SiYuan to version 3.7.4 or later.
- Verify access controls on the /api/tag/getTag endpoint.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-72792.
| URL | Resource |
|---|---|
| https://github.com/siyuan-note/siyuan/security/advisories/GHSA-mp7r-57w4-5qm3 | |
| https://www.vulncheck.com/advisories/siyuan-before-information-disclosure-via-tag-api |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-72792 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-72792
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-72792 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-72792 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
CVE Translated by [email protected]
Oct. 24, 2026
Action Type Old Value New Value Changed Translation Title: siyuan de siyuan-note, Description: SiYuan anterior a la v3.7.4 contiene una vulnerabilidad de revelación de información en el endpoint /api/tag/getTag que devuelve etiquetas de tags y recuentos de ocurrencias de documentos protegidos con contraseña a lectores no autenticados. Los atacantes pueden enumerar el vocabulario de tags y la terminología interna de documentos protegidos con contraseña al llamar al endpoint de tags sin proporcionar la contraseña de publicación del documento. Title: siyuan de siyuan-note, Description: SiYuan anterior a la v3.7.4 contiene una vulnerabilidad de revelación de información en el endpoint /api/tag/getTag que devuelve etiquetas de tags y recuentos de ocurrencias de documentos protegidos con contraseña a lectores no autenticados. Los atacantes pueden enumerar el vocabulario de tags y la terminología interna de documentos protegidos con contraseña al llamar al endpoint de tags sin proporcionar la contraseña de publicación del documento. -
CVE Translated by [email protected]
Oct. 23, 2026
Action Type Old Value New Value Added Translation Title: siyuan de siyuan-note, Description: SiYuan anterior a la v3.7.4 contiene una vulnerabilidad de revelación de información en el endpoint /api/tag/getTag que devuelve etiquetas de tags y recuentos de ocurrencias de documentos protegidos con contraseña a lectores no autenticados. Los atacantes pueden enumerar el vocabulario de tags y la terminología interna de documentos protegidos con contraseña al llamar al endpoint de tags sin proporcionar la contraseña de publicación del documento. -
New CVE Received by [email protected]
Aug. 12, 2026
Action Type Old Value New Value Added Affected [{'vendor': 'siyuan-note', 'product': 'siyuan', 'versions': [{'status': 'affected', 'version': '0', 'lessThan': '3.7.4', 'versionType': 'semver'}, {'status': 'unaffected', 'version': '3.7.4', 'versionType': 'semver'}], 'packageURL': 'pkg:golang/github.com/siyuan-note/siyuan/kernel', 'defaultStatus': 'unaffected'}] Added Description SiYuan before v3.7.4 contains an information disclosure vulnerability in the /api/tag/getTag endpoint that returns tag labels and occurrence counts from password-protected documents to unauthenticated readers. Attackers can enumerate tag vocabulary and internal terminology from password-protected documents by calling the tag endpoint without providing the document's publish password. Added CVSS V4.0 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 Added CVSS V3.1 AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:N/A:N Added CWE CWE-863 Added Reference https://github.com/siyuan-note/siyuan/security/advisories/GHSA-mp7r-57w4-5qm3 Added Reference https://www.vulncheck.com/advisories/siyuan-before-information-disclosure-via-tag-api -
CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
Aug. 12, 2026
Action Type Old Value New Value Added SSVC {'id': 'CVE-2026-72792', 'role': 'CISA Coordinator', 'options': [{'exploitation': 'none'}, {'automatable': 'yes'}, {'technicalImpact': 'partial'}], 'version': '2.0.3', 'timestamp': '2026-08-12T19:47:31.689489Z'}