CVE Database · CVE-2026-30853
CVSS v3.1
5.0
EPSS
0.18%
Published
Mar 13, 2026
Modified
Mar 18, 2026
Public PoC / Exploit (1)
All weaponized →Links to public security research (Exploit-DB, Nuclei, Trickest, GitHub) for defensive use only.
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.
CVSS Vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:N/I:L/A:LWeaknesses (CWE)
Affected Products (1)
References (1)