CVE-2026-27625: Stirling-PDF is a locally hosted web application that performs various operations on PDF files. In versions prior to 2.5.2, the /api/v1/convert/markdown/pdf…

PriorityP343medium6.5CVSS 3.1

AVNACLPRLUINSUCNIHAN

EPSS

0.46%

36.6th percentile

Stirling-PDF is a locally hosted web application that performs various operations on PDF files. In versions prior to 2.5.2, the /api/v1/convert/markdown/pdf endpoint extracts user-supplied ZIP entries without path checks. Any authenticated user can write files outside the intended temporary working directory, leading to arbitrary file write with the privileges of the Stirling-PDF process user (stirlingpdfuser). This can overwrite writable files and compromise data integrity, with further impact depending on writable paths. The issue was fixed in version 2.5.2.

Affected

2 ranges

Vendor	Product	Version range	Fixed in
stirling-tools	stirling-pdf	< 2.5.2	2.5.2
stirling	stirling_pdf	< 2.5.2	2.5.2

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