PT-2026-136218

CVE-2026-121544

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Published

2026-11-03

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Updated

2026-11-03

Description by

CVSS 3.1
4.9
Medium
MetricsAV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N
Koodo Reader through 2.4.6 contains a path traversal vulnerability in the self-hosted HTTP server's OPDS handlers that allows authenticated attackers to read files outside the upload directory. Attackers can upload a crafted books.db with a cover value containing ../ sequences, then request /opds/cover/{key} to read files accessible to the server process.
Exploitability
Exploit
Fix
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Related identifiers
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