---
id: CVE-2026-110717
title: >-
  Janus WebRTC Server through 1.4.3 contains a path traversal vulnerability in
  the Record&Play plugin that allows unauthenticated attackers to write files
  outside recordings_path via the record request filename
summary: >-
  Janus WebRTC Server through 1.4.3 contains a path traversal vulnerability in
  the Record&Play plugin that allows unauthenticated attackers to write files
  outside recordings_path via the record request filename. Attackers can supply
  filena…
severity: medium
cvss: 5.3
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N'
cwe:
  - CWE-22
published: '2026-10-14'
updated: '2026-10-14'
sourceUpdated: '2026-10-14T18:17:36.223'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-110717'
references:
  - url: 'https://github.com/meetecho/janus-gateway'
    label: disclosure@vulncheck.com
  - url: >-
      https://github.com/meetecho/janus-gateway/blob/1f0b75cac1c9ad819ee4c2a905a2c65b00b82cde/src/plugins/janus_recordplay.c#L1965
    label: disclosure@vulncheck.com
  - url: >-
      https://github.com/meetecho/janus-gateway/blob/1f0b75cac1c9ad819ee4c2a905a2c65b00b82cde/src/record.c#L218
    label: disclosure@vulncheck.com
  - url: 'https://hackmd.io/@1ExmmukzRMWN7B4gQ4W-4Q/HkEaF-piGl'
    label: disclosure@vulncheck.com
  - url: >-
      https://www.vulncheck.com/advisories/janus-webrtc-server-through-1.4.3-path-traversal-via-record-play-filename
    label: disclosure@vulncheck.com
tags:
  - nvd
ingestedAt: '2026-10-14T16:40:32.122Z'
---

## Overview

Janus WebRTC Server through 1.4.3 contains a path traversal vulnerability in the Record&Play plugin that allows unauthenticated attackers to write files outside recordings_path via the record request filename. Attackers can supply filenames with path separators to create or truncate files ending in -audio.mjr, -video.mjr or -data.mjr anywhere the Janus process can write outside protected folders.

## Remediation

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