Meetecho Janus Gateway up to 1.4.3 Record/Play Plugin path traversal

Summaryinfo

A vulnerability identified as critical has been detected in Meetecho Janus Gateway up to 1.4.3. This impacts an unknown function of the component Record/Play Plugin. Performing a manipulation results in path traversal. This vulnerability is reported as CVE-2026-110717. The attack is possible to be carried out remotely. No exploit exists.

Detailsinfo

A vulnerability classified as critical has been found in Meetecho Janus Gateway up to 1.4.3. This affects some unknown functionality of the component Record/Play Plugin. The manipulation with an unknown input leads to a path traversal vulnerability. CWE is classifying the issue as CWE-22. The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory. This is going to have an impact on integrity, and availability. The summary by CVE is:

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.

It is possible to read the advisory at hackmd.io. This vulnerability is uniquely identified as CVE-2026-110717 since 10/14/2026. The exploitability is told to be easy. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. The technical details are unknown and an exploit is not publicly available. The pricing for an exploit might be around USD $0-$5k at the moment (estimation calculated on 10/14/2026). The attack technique deployed by this issue is T1006 according to MITRE ATT&CK.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

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Productinfo

Vendor

• Meetecho

Name

• Janus Gateway

Version

• 1.4.0
• 1.4.1
• 1.4.2
• 1.4.3

CPE 2.3info

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CPE 2.2info

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