CVEvulnerability
CVE-2026-53511
8.5 HIGH
Official page ↗
- Status
- Deferred
- Published
- 2026-07-07
- Last modified
- 2026-10-25
- Assigner
- [email protected]
- CVSS 4.0 ([email protected])
- 8.5 HIGH — 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
- Weaknesses
- CWE-94
Description
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.
Related
Weakness · CWE (1)
- CWE-94 Improper Control of Generation of Code weakness
References
- https://github.com/kovidgoyal/calibre/commit/712f4e1ff5c1e798c335bef3bacc4efdee052e9c github.com
- https://github.com/kovidgoyal/calibre/releases/tag/v9.10.0 github.com
- https://github.com/kovidgoyal/calibre/security/advisories/GHSA-2j4m-2q7x-2c47 github.com
- https://lists.debian.org/debian-lts-announce/2026/08/msg00034.html lists.debian.org
- https://github.com/kovidgoyal/calibre/security/advisories/GHSA-2j4m-2q7x-2c47 github.com