CVE catalog
CVE-2026-26065
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 20
- Severity
- Critical · CVSS 9.3
- Published
- Source
- [NVD] · [CVE record]
- EPSS
- 0.59% · Oct 25, 2026
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.
Vulnerable and fixed packages
Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.
| Distribution | Package | Release | Version | Status |
|---|---|---|---|---|
| Debian | calibre | sid | 9.17.0+ds+~1.1.2-1 | fixed |
| Debian | calibre | forky | 9.17.0+ds+~1.1.2-1 | fixed |
| Debian | calibre | trixie | 8.5.0+ds-1+deb13u3 | fixed |
| Debian | calibre | bookworm | 6.13.0+repack-2+deb12u9 | fixed |
| Debian | calibre | bookworm-security | 6.13.0+repack-2+deb12u10 | fixed |
| Cpe | calibre | Not reported | Not reported | vulnerable |
| Cpe | calibre | Not reported | Not reported | unknown |
Fixed-version evidence
| Distribution | Package | Type | Release | Fixed version | Urgency | Origin | Bugs |
|---|---|---|---|---|---|---|---|
| Debian | calibre | source | sid | 9.3.0+ds+~0.10.5-1 | not yet assigned | Not reported | Not reported |
| Debian | calibre | source | forky | 9.3.0+ds+~0.10.5-1 | not yet assigned | Not reported | Not reported |
| Debian | calibre | source | trixie | 8.5.0+ds-1+deb13u2 | not yet assigned | Not reported | Not reported |
| Debian | calibre | source | bookworm | 6.13.0+repack-2+deb12u6 | not yet assigned | Not reported | Not reported |
OpenFactory catalog packages
[Debian 12 (Bookworm)]
- [calibre]Fixed
Details (4)
6.13.0+repack-2+deb12u9· all · bookwormFixed · Fixed:
6.13.0+repack-2+deb12u6nvd · calibre · debian · bookworm; nvd · calibre · debian · 12
6.13.0+repack-2+deb12u9· all · bookwormFixed · Fixed:
6.13.0+repack-2+deb12u6nvd · calibre · debian · bookworm; nvd · calibre · debian · 12
6.13.0+repack-2+deb12u10· all · bookworm-securityFixed · Fixed:
6.13.0+repack-2+deb12u6nvd · calibre · debian · bookworm; nvd · calibre · debian · 12
6.13.0+repack-2+deb12u10· all · bookworm-securityFixed · Fixed:
6.13.0+repack-2+deb12u6nvd · calibre · debian · bookworm; nvd · calibre · debian · 12
- [calibre-bin]Fixed
Source package: [calibre]
Details (4)
6.13.0+repack-2+deb12u9· amd64 · bookwormFixed · Fixed:
6.13.0+repack-2+deb12u6nvd · calibre · debian · bookworm; nvd · calibre · debian · 12
6.13.0+repack-2+deb12u9· arm64 · bookwormFixed · Fixed:
6.13.0+repack-2+deb12u6nvd · calibre · debian · bookworm; nvd · calibre · debian · 12
6.13.0+repack-2+deb12u10· amd64 · bookworm-securityFixed · Fixed:
6.13.0+repack-2+deb12u6nvd · calibre · debian · bookworm; nvd · calibre · debian · 12
6.13.0+repack-2+deb12u10· arm64 · bookworm-securityFixed · Fixed:
6.13.0+repack-2+deb12u6nvd · calibre · debian · bookworm; nvd · calibre · debian · 12
[Debian 13 (Trixie)]
- [calibre]Fixed
Details (4)
8.5.0+ds-1+deb13u3· all · trixieFixed · Fixed:
8.5.0+ds-1+deb13u2nvd · calibre · debian · 13
8.5.0+ds-1+deb13u3· all · trixieFixed · Fixed:
8.5.0+ds-1+deb13u2nvd · calibre · debian · 13
8.16.2+ds+~0.10.5-3~bpo13+1· all · trixie-backportsFixed · Fixed:
8.5.0+ds-1+deb13u2nvd · calibre · debian · 13
8.16.2+ds+~0.10.5-3~bpo13+1· all · trixie-backportsFixed · Fixed:
8.5.0+ds-1+deb13u2nvd · calibre · debian · 13
- [calibre-bin]Fixed
Source package: [calibre]
Details (4)
8.5.0+ds-1+deb13u3· amd64 · trixieFixed · Fixed:
8.5.0+ds-1+deb13u2nvd · calibre · debian · 13
8.5.0+ds-1+deb13u3· arm64 · trixieFixed · Fixed:
8.5.0+ds-1+deb13u2nvd · calibre · debian · 13
8.16.2+ds+~0.10.5-3~bpo13+1· amd64 · trixie-backportsFixed · Fixed:
8.5.0+ds-1+deb13u2nvd · calibre · debian · 13
8.16.2+ds+~0.10.5-3~bpo13+1· arm64 · trixie-backportsFixed · Fixed:
8.5.0+ds-1+deb13u2nvd · calibre · debian · 13
Observed:
References
- [https://ftp.suse.com/pub/projects/security/csaf/opensuse-su-2026_10587-1.json]
- [https://nvd.nist.gov/vuln/detail/CVE-2026-26065]
- [https://osv.dev/vulnerability/DEBIAN-CVE-2026-26065]
- [https://security-tracker.debian.org/tracker/CVE-2026-26065]
- [https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-26065.json]
[Debian Security Tracker] · [FIRST EPSS] · [National Vulnerability Database (NVD)] · [OSV Package Vulnerability Database] · [Red Hat security advisories and VEX] · [SUSE security advisories and VEX]