Vulnerability Description
Kyoo is a self-hosted media server focused on movies, series, and anime. Prior to 5.1.0, a registered user with the core.play permission could supply a base64-encoded filesystem path to the transcoder. The path handling in transcoder/src/api/path.go cleaned the value and checked only that it began with Settings.SafePath before getHash processed it, while transcoder/src/api/streams.go served the accepted path without verifying a Kyoo catalog record. This missing catalog-level authorization allowed the user to retrieve hidden, temporary, operational, or other uncataloged files beneath the media directory when the path was known or guessed. This vulnerability is fixed in 5.1.0.
CVSS Score
MEDIUM
Related Weaknesses (CWE)
References
- https://github.com/zoriya/Kyoo/commit/c542adb5dc6d681e6491b28b5ac618c35c446d91
- https://github.com/zoriya/Kyoo/pull/1577
- https://github.com/zoriya/Kyoo/releases/tag/v5.1.0
- https://github.com/zoriya/Kyoo/security/advisories/GHSA-fc8v-vr3q-hc46
- https://github.com/zoriya/Kyoo/security/advisories/GHSA-fc8v-vr3q-hc46
FAQ
What is CVE-2026-77385?
CVE-2026-77385 is a vulnerability with a CVSS score of 4.3 (MEDIUM). Kyoo is a self-hosted media server focused on movies, series, and anime. Prior to 5.1.0, a registered user with the core.play permission could supply a base64-encoded filesystem path to the transcoder...
How severe is CVE-2026-77385?
CVE-2026-77385 has been rated MEDIUM with a CVSS base score of 4.3/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-77385?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.