CVE-2026-121544
Medium · 4.9CVSS
4.9
EPSS
0.6%
Published
Nov 3, 2026
CISA due date
—
The record
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.
Affected packages
| Ecosystem | Package | Introduced | Fixed |
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