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.
Severity (CVSS)
| Base score | 8.5 |
|---|---|
| Severity | High |
| Version | CVSS 4.0 |
| Vector | 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 |
| Provided by | CNA |
Weaknesses
- CWE-94 — CWE-94: Improper Control of Generation of Code ('Code Injection')
Affected products
| Vendor | Product | Versions |
|---|---|---|
| kovidgoyal | calibre | < 9.10.0 |
References
- https://github.com/kovidgoyal/calibre/security/advisories/GHSA-2j4m-2q7x-2c47 (x_refsource_CONFIRM)
- https://github.com/kovidgoyal/calibre/commit/712f4e1ff5c1e798c335bef3bacc4efdee052e9c (x_refsource_MISC)
- https://github.com/kovidgoyal/calibre/releases/tag/v9.10.0 (x_refsource_MISC)
Generated from the official CVE List on 08 Jul 2026 07:00 UTC.