CVE-2026-105080

Arbitrary Code Execution via Unvalidated Calibre Recipe Files

Published Oct 3, 2026 CVSS 4.0 · 9.4 Critical EPSS < 1% KEV · Not listed
Description
In ConvertX before 0.19.0, converters/calibre.ts does not block recipe files, and instead passes them to the ebook-convert program from Calibre. This affects executable code in a .recipe or .downloaded_recipe file.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Type Values Removed Values Added
Title Arbitrary Code Execution via Unvalidated Calibre Recipe Files
Type Values Removed Values Added
Description In ConvertX before 0.19.0, converters/calibre.ts does not block recipe files, and instead passes them to the ebook-convert program from Calibre. This affects executable code in a .recipe or .downloaded_recipe file.
First Time appeared C4illin
C4illin convertx
Weaknesses CWE-829
CPEs cpe:2.3:a:c4illin:convertx:*:*:*:*:*:*:*:*
Vendors & Products C4illin
C4illin convertx
References
Metrics cvssV3_1

{'score': 9.9, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H'}

cvssV4_0

{'score': 9.4, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
mitre
Published
Updated
Oct 6, 2026, 4:45 PM
Reserved
Oct 3, 2026, 12:39 AM
Status
Deferred
Published
Oct 3, 2026, 1:17 AM
Modified
Oct 6, 2026, 5:17 PM