CVE-2026-121544
mediumKoodo 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 f…
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.
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N Affected products
Not reported by the source (unknown — not "none").
Weakness classification (CWE)
Source: NVD / CISA. “NVD-CWE-Other” and “NVD-CWE-noinfo” mean NVD could not assign a specific weakness.
Mitigation & advisories
No vendor advisory or patch reference tagged by NVD. Check the references below.
References
- https://github.com/koodo-reader/koodo-reader disclosure@vulncheck.com
- https://github.com/koodo-reader/koodo-reader/blob/v2.4.6/httpserver/opds.go#L167-L194 disclosure@vulncheck.com
- https://github.com/koodo-reader/koodo-reader/blob/v2.4.6/httpserver/opds.go#L384-L431 disclosure@vulncheck.com
- https://github.com/koodo-reader/koodo-reader/commit/cbc79a1ab5cbbd61c8252d6ab3cc6dbb694663... disclosure@vulncheck.com
- https://github.com/koodo-reader/koodo-reader/compare/205539043b0a2afd9fd8bf99ef8434bd1833c... disclosure@vulncheck.com
- https://github.com/koodo-reader/koodo-reader/issues/1654 disclosure@vulncheck.com
- https://www.vulncheck.com/advisories/koodo-reader-through-2.4.6-path-traversal-via-opds-co... disclosure@vulncheck.com
- https://github.com/koodo-reader/koodo-reader/issues/1654 134c704f-9b21-4f2e-91b3-4a467353bcc0