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Vulnerabilities CVE-2026-68587

CVE-2026-68587

Critical
Open
TLP:CLEAR

SiYuan before v3.7.3 Information Disclosure via getHeading*Transaction

AI Analysis

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Description

SiYuan versions before v3.7.3 contain an information disclosure vulnerability in the getHeadingDeleteTransaction, getHeadingLevelTransaction, and getHeadingInsertTransaction endpoints that return rendered block DOM without publish-access checks. Anonymous readers or publish RoleReader tokens can supply a heading block ID to read full rendered content of publish-disabled documents that should be restricted.

Details

CVSS Score
9.2
EPSS Score
0.25%

15.9th percentile

CVSS Vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:H/SI:N/SA:N
Confidence
90%
Published
Aug 3, 2026
Last Modified
Aug 3, 2026
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