ByteOS Network

NVD Vulnerability Details :

CVE-2026-53511

Deferred

Source-security-advisories@github.com

Published At-07 Jul, 2026 | 21:17

Updated At-10 Jul, 2026 | 18:59

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.

Date Added	Due Date	Vulnerability Name	Required Action
	N/A

Metrics

Type	Version	Base score	Base severity	Vector
Secondary	4.0	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
			N/A

Type: Secondary

Version: 4.0

Base score: 8.5

Base severity: HIGH

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/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

Type: N/A

Version:

Base score:

Base severity: N/A

Vector:

Weaknesses

CWE ID	Type	Source
CWE-94	Secondary	security-advisories@github.com

CWE ID: CWE-94

Type: Secondary

Source: security-advisories@github.com

References

Hyperlink	Source	Resource
https://github.com/kovidgoyal/calibre/commit/712f4e1ff5c1e798c335bef3bacc4efdee052e9c	security-advisories@github.com	N/A
https://github.com/kovidgoyal/calibre/releases/tag/v9.10.0	security-advisories@github.com	N/A
https://github.com/kovidgoyal/calibre/security/advisories/GHSA-2j4m-2q7x-2c47	security-advisories@github.com	N/A
https://github.com/kovidgoyal/calibre/security/advisories/GHSA-2j4m-2q7x-2c47	134c704f-9b21-4f2e-91b3-4a467353bcc0	N/A