CVE-2026-121544

MediumCVSS 4.9/10Last modified Nov 3, 2026

Description

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.

Metrics

CVSS 3.1 4.9/10CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N

Weakness enumeration

CWE-22

Affected software

No affected versions have been published.

Timeline

Published: Nov 3, 2026
Last modified: Nov 3, 2026
NVD status: Deferred

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