Critical severity · published Oct 3, 2026
CVE-2026-105080
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
9.9
CVSS
0.4%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)0.4% · higher than 36% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
CO
ConvertX · C4illin
before 0.19.0 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-105080
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-105080
github.com
https://github.com/C4illin/ConvertX/releases/tag/v0.19.0
github.com
https://github.com/C4illin/ConvertX/security/advisories/GHSA-m4hh-rqmf-c8hw
github.com
https://github.com/C4illin/ConvertX/commit/0ca17dad7fa65e2e34823b59b95dd00bb1066b66
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