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9.4

ConvertX could run malicious recipe files via Calibre

CVE-2026-105080 · published 16 days ago
Summary

Versions of ConvertX before 0.19 allow special recipe files to be sent to Calibre's ebook-convert tool without checking them. If an attacker supplies a crafted .recipe or .downloaded_recipe file, it can cause unwanted code to run on the system. Upgrade ConvertX to version 0.19 or later to stop this behavior.

Original advisory text
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 .downlo...
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.
References
Fix within
Internet-facing 14 days
Internal At next upgrade
  • Not known to be exploited
  • Needs hands-on effort to exploit
  • Gives an attacker full control
Severity
9.4 Critical
Exploitation
<1% chance of attack within 30 days
Type
CWE-829Inclusion of Functionality from Untrusted Control Sphere
Timeline
Published3 Oct 2026
Updated15 Oct 2026
First seen3 Oct 2026
Sources
CVE-2026-105080 · NVD
CVE-2026-105080 · OSV
GHSA-m4hh-rqmf-c8hw · GHSA
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