CVE-2026-41580 Stirling-PDF: Reflected XSS through crafted PDF metadata fields (Title and Author)

Medium 6.1 Published 15 Jul 2026 Updated 15 Jul 2026

Attackers can execute arbitrary JavaScript in victim browsers via crafted PDF metadata fields in Stirling-PDF.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Over the internet
Victim action needed: A user has to click or open something
Fix: None listed

What is CVE-2026-41580?

CVE-2026-41580 is a medium-severity cross-site scripting vulnerability in Stirling-Tools Stirling-PDF, published on 15 Jul 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

Official description

Stirling-PDF is a locally hosted web application that facilitates various operations on PDF files. Prior to 2.0.0, Stirling-PDF's /get-info-on-pdf endpoint rendered PDF Title and Author metadata fields without proper HTML encoding or sanitization, allowing a crafted PDF to execute attacker-controlled JavaScript in the browser of a user who views the resulting page. This issue is fixed in version 2.0.0.

Weakness: CWE-79

Which versions are affected by CVE-2026-41580?

It affects 1 product.

Products include Stirling Stirling Pdf.

How do I fix CVE-2026-41580?

No fix has been published for CVE-2026-41580 yet. Limit exposure of the affected software until one is available.

Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.

Is CVE-2026-41580 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-41580 exists.

Sources

Also known as GHSA-rjjx-43g5-mp76.