Stirling-PDF 2.13.2 through 3.2.0 H2 SQL Denylist Bypass via import-database

Advisories

Stirling-PDF 2.13.2 through 3.2.0 H2 SQL Denylist Bypass via import-database

Severity: high
Date: 10/20/2026
Affecting: Stirling-PDF >= 2.13.2, <= 3.2.0
CVE: CVE-2026-113605
CWE: CWE-184 Incomplete List of Disallowed Inputs
CVSS: 8.6
CVSS V4 Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
References: https://github.com/abraxas/stirling-h2-import-leftover
https://abraxaslabs.tech/research/stirling-h2-import-leftover
https://abraxaslabs.tech/research/stirling-pdf-3.2.0-leftovers
https://github.com/Stirling-Tools/Stirling-PDF/blob/v3.2.0/app/proprietary/src/main/java/stirling/software/proprietary/security/service/DatabaseService.java
Credit: Abraxas Labs
Description: Stirling-PDF from 2.13.2 through 3.2.0 contains an incomplete denylist in DatabaseService.validateSqlContent() that allows administrators to bypass H2 import restrictions using CREATE OR REPLACE ALIAS. Authenticated administrators can upload a crafted SQL backup to the import-database endpoint, where RUNSCRIPT defines H2 Java function aliases and restores Java-method execution.

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