CVE catalog
CVE-2026-53511
calibre is an e-book manager. Prior to 9.10.0, a malicious EPUB, OPF, or PDF file can execute arbitrary Python code when its metadata is read by calibre, including through Add books or Edit books, by
- Severity
- High · CVSS 8.5
CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X - Published
- Source
- [NVD] · [CVE record]
- EPSS
- 0.20% · Oct 25, 2026
calibre is an e-book manager. Prior to 9.10.0, a malicious EPUB, OPF, or PDF file can execute arbitrary Python code when its metadata is read by calibre, including through Add books or Edit books, by embedding a custom column definition with a python: template in calibre:user_metadata that is passed unsanitized to exec() in the template formatter. This issue is fixed in version 9.10.0.
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 | vulnerable |
| Debian | calibre | bookworm | 6.13.0+repack-2+deb12u9 | vulnerable |
| Debian | calibre | bookworm-security | 6.13.0+repack-2+deb12u10 | fixed |
| Cpe | calibre | Not reported | Not reported | vulnerable |
| Opensuse | calibre | tumbleweed | 9.10.0-1.1 | fixed |
Fixed-version evidence
| Distribution | Package | Type | Release | Fixed version | Urgency | Origin | Bugs |
|---|---|---|---|---|---|---|---|
| Debian | calibre | source | sid | 9.10.0+ds+~0.10.6-1 | not yet assigned | Not reported | Not reported |
| Debian | calibre | source | forky | 9.10.0+ds+~0.10.6-1 | not yet assigned | Not reported | Not reported |
| Debian | calibre | source | trixie | (unfixed) | not yet assigned | Not reported | Not reported |
| Debian | calibre | source | bookworm | 6.13.0+repack-2+deb12u10 | not yet assigned | Not reported | Not reported |
| Opensuse | calibre | rpm | tumbleweed | 9.10.0-1.1 | Not reported | OPENSUSE-SU-2026:11130-1 | Not reported |
Notes
[trixie] calibre: Minor issue
OpenFactory catalog packages
[Debian 12 (Bookworm)]
- [calibre]Affected
Details (4)
6.13.0+repack-2+deb12u9· all · bookwormAffected · Fixed:
6.13.0+repack-2+deb12u10nvd · calibre · debian · bookworm; nvd · calibre · debian · 12
6.13.0+repack-2+deb12u9· all · bookwormAffected · Fixed:
6.13.0+repack-2+deb12u10nvd · calibre · debian · bookworm; nvd · calibre · debian · 12
6.13.0+repack-2+deb12u10· all · bookworm-securityFixed · Fixed:
6.13.0+repack-2+deb12u10nvd · calibre · debian · bookworm; nvd · calibre · debian · 12
6.13.0+repack-2+deb12u10· all · bookworm-securityFixed · Fixed:
6.13.0+repack-2+deb12u10nvd · calibre · debian · bookworm; nvd · calibre · debian · 12
- [calibre-bin]Affected
Source package: [calibre]
Details (4)
6.13.0+repack-2+deb12u9· amd64 · bookwormAffected · Fixed:
6.13.0+repack-2+deb12u10nvd · calibre · debian · bookworm; nvd · calibre · debian · 12
6.13.0+repack-2+deb12u9· arm64 · bookwormAffected · Fixed:
6.13.0+repack-2+deb12u10nvd · calibre · debian · bookworm; nvd · calibre · debian · 12
6.13.0+repack-2+deb12u10· amd64 · bookworm-securityFixed · Fixed:
6.13.0+repack-2+deb12u10nvd · calibre · debian · bookworm; nvd · calibre · debian · 12
6.13.0+repack-2+deb12u10· arm64 · bookworm-securityFixed · Fixed:
6.13.0+repack-2+deb12u10nvd · calibre · debian · bookworm; nvd · calibre · debian · 12
[Debian 13 (Trixie)]
- [calibre]Affected
Details (4)
8.5.0+ds-1+deb13u3· all · trixieAffected
nvd · calibre · debian · 13
8.5.0+ds-1+deb13u3· all · trixieAffected
nvd · calibre · debian · 13
8.16.2+ds+~0.10.5-3~bpo13+1· all · trixie-backportsAffected
nvd · calibre · debian · 13
8.16.2+ds+~0.10.5-3~bpo13+1· all · trixie-backportsAffected
nvd · calibre · debian · 13
- [calibre-bin]Affected
Source package: [calibre]
Details (4)
8.5.0+ds-1+deb13u3· amd64 · trixieAffected
nvd · calibre · debian · 13
8.5.0+ds-1+deb13u3· arm64 · trixieAffected
nvd · calibre · debian · 13
8.16.2+ds+~0.10.5-3~bpo13+1· amd64 · trixie-backportsAffected
nvd · calibre · debian · 13
8.16.2+ds+~0.10.5-3~bpo13+1· arm64 · trixie-backportsAffected
nvd · calibre · debian · 13
[openSUSE Tumbleweed]
Observed:
References
- [https://ftp.suse.com/pub/projects/security/csaf/opensuse-su-2026_11130-1.json]
- [https://github.com/kovidgoyal/calibre/commit/712f4e1ff5c1e798c335bef3bacc4efdee052e9c]
- [https://github.com/kovidgoyal/calibre/releases/tag/v9.10.0]
- [https://github.com/kovidgoyal/calibre/security/advisories/GHSA-2j4m-2q7x-2c47]
- [https://lists.debian.org/debian-lts-announce/2026/08/msg00034.html]
- [https://nvd.nist.gov/vuln/detail/CVE-2026-53511]
- [https://osv.dev/vulnerability/DEBIAN-CVE-2026-53511]
- [https://osv.dev/vulnerability/openSUSE-SU-2026:11130-1]
- [https://security-tracker.debian.org/tracker/CVE-2026-53511]
- [https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-53511.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]