# CVE-2026-117373: CVE-2026-117373

Status: published. Published: 2026-11-11. Updated: 2026-11-11.

Janus WebRTC Server 1.2.3 through 1.4.0 is vulnerable to Directory Traversal. The application accepts a caller supplied media path when an ondemand stream is created. The path is validated only by checking whether it contains one of the audio extensions and is then passed to the file source which opens it. No canonicalization is performed and no directory allowlist is enforced, so an unauthenticated caller can make the server open an arbitrary local file and use it as a media source, with the content delivered to viewers as RTP audio.

## Remediation

No remediation reported in collected sources

## Affected products and versions

- n/a / n/a: Version not specified (affected). Source: CNA: mitre

## Severity and prioritization

- CISA KEV: No listing in collected sources

- EPSS: Not available

- SSVC: Not available

- Weaknesses: Not reported

## Exploit evidence

No exploit evidence in collected sources. This is not proof of no exploitation.

## References

- https://github.com/meetecho/janus-gateway/pull/3637 (CNA: mitre)

- https://github.com/meetecho/janus-gateway/pull/3676 (CNA: mitre)

- https://github.com/meetecho/janus-gateway/releases/tag/v1.4.2 (CNA: mitre)

- https://github.com/w1n0y/CVE (CNA: mitre)

## Provenance

- CNA: mitre: https://www.cve.org/CVERecord?id=CVE-2026-117373; retrieved 2026-11-11; source updated 2026-11-11

Revision: aa7d0ba204367033705adc1c9d2e44eb01372828d39d38e1aab696433d5e9230

Canonical: https://y2.dev/cve/CVE-2026-117373

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