Bug 2437936 (CVE-2026-25635) - CVE-2026-25635 calibre: Calibre: Remote Code Execution via path traversal in CHM reader
Summary: CVE-2026-25635 calibre: Calibre: Remote Code Execution via path traversal in ...
Keywords:
Status: NEW
Alias: CVE-2026-25635
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
high
high
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
Whiteboard:
Depends On: 2437955 2437958
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-02-09 11:14 UTC by OSIDB Bzimport
Modified: 2026-02-09 12:47 UTC (History)
0 users

Fixed In Version:
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Description OSIDB Bzimport 2026-02-09 11:14:56 UTC 
calibre is an e-book manager. Prior to 9.2.0, Calibre's CHM reader contains a path traversal vulnerability that allows arbitrary file writes anywhere the user has write permissions. On Windows (haven't tested on other OS's), this can lead to Remote Code Execution by writing a payload to the Startup folder, which executes on next login. This vulnerability is fixed in 9.2.0.
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