CVE-2026-71270 Stirling-PDF Server-Side Request Forgery via /api/v1/convert/url/pdf WeasyPrint Subprocess
Attackers can exploit missing SSRF protections in the URL-to-PDF conversion endpoint to access internal resources or bypass security controls.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-71270?
CVE-2026-71270 is a high-severity server-side request forgery vulnerability in Stirling-Tools Stirling-PDF, published on 5 Aug 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Stirling-PDF's POST /api/v1/convert/url/pdf endpoint (ConvertWebsiteToPDF.java) was not updated with the CustomHtmlSanitizer/SsrfProtectionService SSRF protections that were added to three sibling conversion endpoints (html/pdf, file/pdf, markdown/pdf).
Weakness: CWE-918
Which versions are affected by CVE-2026-71270?
How do I fix CVE-2026-71270?
No fix has been published for CVE-2026-71270 yet. Limit exposure of the affected software until one is available.
Upgrade, and send outbound requests through an allow-list that blocks internal addresses. More about Server-side request forgery.
Is CVE-2026-71270 being exploited?
There is no known exploitation of CVE-2026-71270 in the wild and no public exploit code.
Sources
Also known as GHSA-j5rg-wh78-9f2q.