CVE-2026-110717
Janus WebRTC Server through 1.4.3 Path Traversal via Record&Play Filename
CVSS Score
5.3
EPSS Score
0.0%
EPSS Percentile
0th
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.
| CWE | CWE-22 |
| Vendor | meetecho |
| Product | janus-gateway |
| Published | Oct 14, 2026 |
| Last Updated | Oct 14, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
Low
Availability
None
Affected Versions
meetecho / janus-gateway
0 ≤ 1.4.3
References
hackmd.io: https://hackmd.io/@1ExmmukzRMWN7B4gQ4W-4Q/HkEaF-piGl github.com: https://github.com/meetecho/janus-gateway/blob/1f0b75cac1c9ad819ee4c2a905a2c65b00b82cde/src/plugins/janus_recordplay.c#L1965 github.com: https://github.com/meetecho/janus-gateway/blob/1f0b75cac1c9ad819ee4c2a905a2c65b00b82cde/src/record.c#L218 github.com: https://github.com/meetecho/janus-gateway vulncheck.com: https://www.vulncheck.com/advisories/janus-webrtc-server-through-1.4.3-path-traversal-via-record-play-filename
Credits
hieuPenguinnn