CVE-2026-110717
Janus WebRTC Server through 1.4.3 Path Traversal via Record&Play Filename
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.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- None
- Integrity
- Low
- Availability
- None
Exploit likelihood
What each source reports
CVE List Score used
Janus WebRTC Server through 1.4.3 Path Traversal via Record&Play Filename
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.
- Record
CVE-2026-110717- CVSS 4.0
- 6.9 Medium
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N - CVSS 3.1
- 5.3 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N - Weakness
- CWE-22
- Updated
- 2026-11-02
EUVDEUVD-2026-101140
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.
- Record
EUVD-2026-101140- CVSS 4.0
- 6.9 Medium
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N - Updated
- 2026-11-02
GitHub AdvisoriesGHSA-rwr7-3rqr-7qwv
Janus WebRTC Server through 1.4.3 contains a path traversal vulnerability in the Record&Play...
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.
- Record
GHSA-rwr7-3rqr-7qwv- CVSS 4.0
- 6.9 Medium
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X - CVSS 3.1
- 5.3 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N - Weakness
- CWE-22
- Updated
- 2026-11-02
NVD
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.
- Record
CVE-2026-110717- CVSS 4.0
- 6.9 Medium
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X - CVSS 3.1
- 5.3 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N - Weakness
- CWE-22
- Updated
- 2026-11-02
OSV
Janus WebRTC Server through 1.4.3 Path Traversal via Record&Play Filename
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.
- Record
CVE-2026-110717- CVSS 4.0
- 6.9 Medium
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N - Weakness
- CWE-22
- Updated
- 2026-11-02
OSVDEBIAN-CVE-2026-110717
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.
- Record
DEBIAN-CVE-2026-110717- CVSS 4.0
- 6.9 Medium
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X - Updated
- 2026-11-02
OSVUBUNTU-CVE-2026-110717
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.
- Record
UBUNTU-CVE-2026-110717- CVSS 4.0
- 6.9 Medium
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N - CVSS 3.1
- 5.3 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N - Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
janusDebian:12 |
All versions, plus listed versions 1.1.2-11.1.2-1.11.1.2-1.21.1.2-21.1.2-3 Show 6 moreShow less1.1.2-3.11.1.2-41.4.1+ds-11.4.1+ds-21.4.1+ds-31.4.1+ds-4 |
None known |
janusDebian:14 |
All versions, plus listed versions 0.10.0-10.10.1-10.10.2-10.10.3-10.10.4-1 Show 45 moreShow less0.10.5-10.10.6-10.10.7-10.10.8-10.10.8-20.10.9-10.10.9-20.11.1-10.11.2-10.11.3-1~exp10.11.4-10.11.5-10.11.5-20.11.5-30.11.5-40.11.6-10.11.6-1~bpo11+10.11.7-10.11.7-1~bpo11+10.11.8-10.11.8-1~bpo11+10.11.8-20.11.8-30.11.8-3~bpo11+10.12.0-10.2.2+dfsg-10.2.2+dfsg-20.2.2+dfsg-30.2.2+dfsg-40.2.2+dfsg-5~exp10.2.2+dfsg-5~exp20.2.2+dfsg-5~exp30.2.3-10.2.4-10.2.4-20.2.5-10.2.6-10.3.1-10.4.2-10.4.4-10.4.5-10.4.5-20.5.0-10.6.0-10.6.0-2 |
None known |
janusUbuntu:18.04:LTS |
All versions, plus listed versions 0.2.4-20.2.5-10.2.6-10.2.6-1build10.2.6-1build2 |
None known |
janusUbuntu:20.04:LTS |
All versions, plus listed versions 0.7.3-20.7.3-2build1 |
None known |
janusUbuntu:22.04:LTS |
All versions, plus listed versions 0.11.2-10.11.5-10.11.5-1ubuntu10.11.5-30.11.5-4 Show 5 moreShow less0.11.6-10.11.7-10.11.8-10.11.8-20.11.8-3 |
None known |
janusUbuntu:24.04:LTS |
All versions, plus listed versions 1.1.2-1build21.1.2-1build31.1.2-1build41.1.2-1build5 |
None known |
janusUbuntu:26.10 |
All versions, plus listed versions 1.1.2-41.4.1+ds-41.4.1+ds-4build1 |
None known |
janusUbuntu:26.04:LTS |
All versions, plus listed versions 1.1.2-31.1.2-3.11.1.2-4 |
None known |
History
| Recorded | Changed | Sources |
|---|---|---|
| first indexed | CVE List, EUVD, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2026-110717 is a medium vulnerability (CVSS 6.9) in Meetecho Janus-gateway, published October 14, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.46%, the 40th percentile. No source names a fixed version.
References
hackmd.io/@1ExmmukzRMWN7B4gQ4W-4Q/HkEaF-piGl
github.com/meetecho/janus-gateway/blob/1f0b75cac1c9ad819ee4c2a905a2c65b00b82cde/src/plugins/janus_recordplay.c
vulncheck.com/advisories/janus-webrtc-server-through-1.4.3-path-traversal-via-record-play-filename
nvd.nist.gov/vuln/detail/CVE-2026-110717
Left out here: 36 versions. The JSON record has them.