CRITICAL

CVE-2025-55161

CVSS v3

9.8

CRITICAL

EPSS Score

2.0 %

exploit probability, as of 2026-10-19

CISA KEV

known exploited

Exploitation

—

SSVC status

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Affected and fixed versions

Neither OSV.dev nor the vendor advisories we read list affected versions for CVE-2025-55161 yet.

Full record on NVD

Description

Stirling-PDF is a locally hosted web application that performs various operations on PDF files. Prior to version 1.1.0, when using the /api/v1/convert/markdown/pdf endpoint to convert Markdown to PDF, the backend calls a third-party tool to process it and includes a sanitizer for security sanitization which can be bypassed and result in SSRF. This issue has been patched in version 1.1.0.

Technical details

Published: 2025-08-11

Frequently asked questions

What is CVE-2025-55161?

Is CVE-2025-55161 actively exploited?

Active exploitation of CVE-2025-55161 has not been confirmed. Its EPSS score was 2.0% on 2026-10-19, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2025-55161?

CVE-2025-55161 has a CVSS v3 base score of 9.8 (CRITICAL severity).

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