medium5.5
CVE-2026-33205
calibre is a cross-platform e-book manager for viewing, converting, editing, and cataloging e-books.
Impact
calibre is a cross-platform e-book manager for viewing, converting, editing, and cataloging e-books. Prior to version 9.6.0, a Server-Side Request Forgery vulnerability in the background-image endpoint of calibre e-book reader's web view allows an attacker to perform blind GET requests to arbitrary URLs and exfiltrate information out from the ebook sandbox. Version 9.6.0 patches the issue.
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Calibre-Ebook | Calibre | before 9.6.0 |