Directory Traversal Affecting calibre package, versions <9.2.0+ds+~0.10.5-1


Severity

Recommended
0.0
high
0
10

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Threat Intelligence

EPSS
0.21% (12th percentile)

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  • Snyk IDSNYK-DEBIANUNSTABLE-CALIBRE-15247978
  • published7 Feb 2026
  • disclosed6 Feb 2026

Introduced: 6 Feb 2026

CVE-2026-25636  (opens in a new tab)
CWE-22  (opens in a new tab)

How to fix?

Upgrade Debian:unstable calibre to version 9.2.0+ds+~0.10.5-1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream calibre package and not the calibre package as distributed by Debian. See How to fix? for Debian:unstable relevant fixed versions and status.

calibre is an e-book manager. In 9.1.0 and earlier, a path traversal vulnerability in Calibre's EPUB conversion allows a malicious EPUB file to corrupt arbitrary existing files writable by the Calibre process. During conversion, Calibre resolves CipherReference URI from META-INF/encryption.xml to an absolute filesystem path and opens it in read-write mode, even when it points outside the conversion extraction directory. This vulnerability is fixed in 9.2.0.

CVSS Base Scores

version 3.1