CVE-2026-113605: Stirling-PDF 2.13.2 through 3.2.0 H2 SQL Denylist Bypass via import-database

Severity: high (CVSS 7.2 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.7% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-10-20 · updated 2026-10-20
Weakness: CWE-184

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.

Affected products

Stirling-Tools Stirling-PDF: from 2.13.2 through 3.2.0

References

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
https://github.com/abraxas/stirling-h2-import-leftover
https://www.vulncheck.com/advisories/stirling-pdf-2.13.2-through-3.2.0-h2-sql-denylist-bypass-via-import-database

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