What is GHSA-mg7g-xgr5-f9cw?

GHSA-mg7g-xgr5-f9cw is a security advisory published by GitHub Security Advisories with Medium severity. Siyuan before v3.8.2 contains an information disclosure vulnerability in the POST /api/search...

Which CVE IDs does GHSA-mg7g-xgr5-f9cw cover?

GHSA-mg7g-xgr5-f9cw covers the following CVE IDs: CVE-2026-87810. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of GHSA-mg7g-xgr5-f9cw?

GHSA-mg7g-xgr5-f9cw has a CVSS v3 base score of 5.3, published by GitHub Security Advisories.

GHSA-mg7g-xgr5-f9cwMediumCVSS 5.3

Siyuan before v3.8.2 contains an information disclosure vulnerability in the POST /api/search...

Vendor

GitHub Security Advisories

Published

September 9, 2026

Last Modified

September 9, 2026

🔗 CVE IDs covered (1)

CVE-2026-87810 →

📋 Description

Siyuan before v3.8.2 contains an information disclosure vulnerability in the POST /api/search/fullTextSearchBlock endpoint that filters private blocks from results but returns unfiltered match counts. Unauthenticated publish-mode readers can submit arbitrary search terms to learn whether matching content exists in hidden or unpublished documents and determine the number of matching blocks and pages.

🔗 References (4)

https://github.com/siyuan-note/siyuan/security/advisories/GHSA-g45v-hxvm-wccj
https://nvd.nist.gov/vuln/detail/CVE-2026-87810
https://www.vulncheck.com/advisories/siyuan-before-3.8.2-information-disclosure-via-fulltextsearchblock
https://github.com/advisories/GHSA-mg7g-xgr5-f9cw