calibre: calibre is a cross-platform e-book manager for viewing, converting, editing, and cataloging e-books
CVE-2026-26065 is fixed in calibre on 1 platform, first by DEBIAN-CVE-2026-26065, released February 20, 2026. It is not reported as exploited. Patch Radar priority: High.
calibre is a cross-platform e-book manager for viewing, converting, editing, and cataloging e-books. Versions 9.2.1 and below are vulnerable to Path Traversal through PDB readers (both 132-byte and 202-byte header variants) that allow arbitrary file writes with arbitrary extension and arbitrary content anywhere the user has write permissions. Files are written in 'wb' mode, silently overwriting existing files. This can lead to potential code execution and Denial of Service through file corruption. This issue has been fixed in version 9.3.0.
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| calibre · Debian 12.15 (bookworm) | 6.13.0+repack-2+deb12u6 | DEBIAN-CVE-2026-26065 | Feb 20, 2026 |
| calibre · Debian 13.5 (trixie) | 8.5.0+ds-1+deb13u2 | DEBIAN-CVE-2026-26065 | Feb 20, 2026 |
| calibre · Debian 14 | 9.3.0+ds+~0.10.5-1 | DEBIAN-CVE-2026-26065 | Feb 20, 2026 |
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