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CVE-2026-30853

nvd nist
Published: Mar 13, 2026Modified: Jun 17, 2026

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8.2
Vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:N/I:H/A:H
Exploitability: 1.8 / Impact: 5.8
Source: NVD

Description

calibre is a cross-platform e-book manager for viewing, converting, editing, and cataloging e-books. Prior to 9.5.0, a path traversal vulnerability in the RocketBook (.rb) input plugin (src/calibre/ebooks/rb/reader.py) allows an attacker to write arbitrary files to any path writable by the calibre process when a user opens or converts a crafted .rb file. This is the same bug class fixed in CVE-2026-26065 for the PDB readers, but the fix was never applied to the RB reader. This vulnerability is fixed in 9.5.0.

Affected (1)

Calibre Ebook
1 product
Calibre
Configuration A
1 vulnerable
Vulnerable SoftwareAffected Versions
Calibre
Before 9.5.0

Related CWEs

CWE-22
Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory.

References (1)

Source: security-advisories@github.com
ExploitVendor Advisory

Timeline

No history available yet.