Detections
Analytics
Alpine: libexpat, multiple expat packages: security update to 2.7.5-r0
medium Tenable Cloud Security Plugin ID 438927
Description
There are packages installed that are affected by multiple vulnerabilities referenced in the following CVEs:- SiYuan is a personal knowledge management system. Versions 3.6.0 and below contain an authorization bypass
vulnerability in the /api/search/fullTextSearchBlock endpoint. When the method parameter is set to 2, the
endpoint passes user-supplied input directly as a raw SQL statement to the underlying SQLite database
without any authorization or read-only checks. This allows any authenticated user — including those with
the Reader role — to execute arbitrary SQL statements (SELECT, DELETE, UPDATE, DROP TABLE, etc.) against
the application's database. This is inconsistent with the application's own security model: the dedicated
SQL endpoint (/api/query/sql) correctly requires both CheckAdminRole and CheckReadonly middleware, but the
search endpoint bypasses these controls entirely. This issue has been fixed in version 3.6.1.
(CVE-2026-32767)
- libexpat before 2.7.5 allows an infinite loop while parsing DTD content. (CVE-2026-32777)
- libexpat before 2.7.5 allows a NULL pointer dereference in the function setContext on retry after an
earlier ouf-of-memory condition. (CVE-2026-32778)
Solution
Update the expat library and its related packages to version 2.7.5-r0 or later.See Also
https://security.alpinelinux.org/vuln/CVE-2026-32767
Plugin Details
Severity: Medium
ID: 438927
Version: Revision 1.5
Type: Local
Published: 3/18/2026
Updated: 7/2/2026
Supported Sensors: Agentless Assessment, Tenable Cloud Security, Tenable Self-Hosted Container Security
Risk Information
VPR
Risk Factor: Medium
Score: 6.9
Percentile: 96.95
CVSS v2
Risk Factor: Medium
Base Score: 4.6
Temporal Score: 3.6
Vector: CVSS2#AV:L/AC:L/Au:S/C:N/I:N/A:C
CVSS Score Source: CVE-2026-32778
CVSS v3
Risk Factor: Medium
Base Score: 5.5
Temporal Score: 5
Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Temporal Vector: CVSS:3.0/E:P/RL:O/RC:C
Vulnerability Information
Exploit Available: true
Exploit Ease: Exploits are available
Vulnerability Publication Date: 3/16/2026