calibre: calibre is a cross-platform e-book manager for viewing, converting, editing, and cataloging e-books
CVE-2026-33206 is fixed in calibre on 1 platform, first by DEBIAN-CVE-2026-33206, released March 27, 2026. It is not reported as exploited. Patch Radar priority: Routine.
calibre is a cross-platform e-book manager for viewing, converting, editing, and cataloging e-books. Prior to version 9.6.0, a path traversal vulnerability exists in Calibre' handling of images in Markdown and other similar text-based files allowing an attacker to include arbitrary files from the file system into the converted book. Additionally, missing authentication and server-side request forgery in the background-image endpoint in the ebook reader web view allow the files to be exfiltrated without additional interaction. Version 9.6.0 contains a fix.
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| calibre · Debian 12.15 (bookworm) | 6.13.0+repack-2+deb12u8 | DEBIAN-CVE-2026-33206 | Mar 27, 2026 |
| calibre · Debian 13.5 (trixie) | 8.5.0+ds-1+deb13u3 | DEBIAN-CVE-2026-33206 | Mar 27, 2026 |
| calibre · Debian 14 | 9.6.0+ds+~0.10.5-1 | DEBIAN-CVE-2026-33206 | Mar 27, 2026 |
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