---
id: CVE-2026-77385
title: 'Kyoo is a self-hosted media server focused on movies, series, and anime'
summary: >-
  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…
severity: medium
cvss: 4.3
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N'
cwe:
  - CWE-639
  - CWE-862
vendor: zoriya
product: Kyoo
affected:
  - Kyoo < 5.1.0
published: '2026-09-18'
updated: '2026-09-23'
sourceUpdated: '2026-09-23T18:12:04.247'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-77385'
references:
  - url: >-
      https://github.com/zoriya/Kyoo/commit/c542adb5dc6d681e6491b28b5ac618c35c446d91
    label: security-advisories@github.com
  - url: 'https://github.com/zoriya/Kyoo/pull/1577'
    label: security-advisories@github.com
  - url: 'https://github.com/zoriya/Kyoo/releases/tag/v5.1.0'
    label: security-advisories@github.com
  - url: 'https://github.com/zoriya/Kyoo/security/advisories/GHSA-fc8v-vr3q-hc46'
    label: security-advisories@github.com
  - url: 'https://github.com/zoriya/Kyoo/security/advisories/GHSA-fc8v-vr3q-hc46'
    label: 134c704f-9b21-4f2e-91b3-4a467353bcc0
tags:
  - nvd
  - cve.org
  - exploit-available
epss: 0.00315
epssPercentile: 0.24685
exploitAvailable: true
ssvc:
  exploitation: poc
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-09-18T19:52:23.748951Z'
ingestedAt: '2026-09-18T17:46:41.550Z'
---

## Overview

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.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.