CVE-2026-77385

medium

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.

References

https://github.com/zoriya/Kyoo/security/advisories/GHSA-fc8v-vr3q-hc46

https://github.com/zoriya/Kyoo/releases/tag/v5.1.0

https://github.com/zoriya/Kyoo/pull/1577

https://github.com/zoriya/Kyoo/commit/c542adb5dc6d681e6491b28b5ac618c35c446d91

https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-83204

Details

Source: Mitre, NVD

Published: 2026-09-18

Updated: 2026-09-23

Risk Information

CVSS v2

Base Score: 4

Vector: CVSS2#AV:N/AC:L/Au:S/C:P/I:N/A:N

Severity: Medium

CVSS v3

Base Score: 4.3

Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

Severity: Medium

EPSS

EPSS: 0.00315