Path traversal in Calibre - CVE-2026-25636
Published: June 29, 2026
Vulnerability identifier: #VU135810
CSH Severity: High
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber
CVE-ID: CVE-2026-25636
CWE-ID: CWE-22
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: Calibre
Affected software:
Calibre
Calibre
Detailed vulnerability description
The vulnerability allows a remote attacker to execute arbitrary code.
The vulnerability exists due to path traversal in file handling when opening a crafted file. A remote attacker can trick the victim into opening a crafted file to execute arbitrary code.
The issue can also lead to arbitrary file corruption. User interaction is required to open a crafted file.
How to mitigate CVE-2026-25636
Install security update from vendor's website.