SB20260629107 - Path traversal in Calibre
Published: June 29, 2026
Security Bulletin ID
SB20260629107
CSH Severity
Medium
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Data manipulation
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Path traversal (CVE-ID: CVE-2026-30853)
CWE-ID: CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N/E:U/U:Green
The vulnerability allows a remote attacker to write arbitrary files.
The vulnerability exists due to path traversal in RB processing when opening a crafted RB file. A remote attacker can trick the victim into opening a crafted file to write arbitrary files.
User interaction is required to open a crafted file.
Remediation
Install update from vendor's website.