High 8.7Published May 14, 2026

CVE-2026-44700Elixir WebRTC: Missing DTLS peer fingerprint validation in ex_webrtc client-role handshake

Updated under an hour ago (Oct 27, 2026, 7:50 AM ET)

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Every CVE for elixir-webrtc ex_webrtc

Exploited in the last 30 days

Elixir WebRTC is an Elixir implementation of the W3C WebRTC API. Prior to 0.15.1 and 0.16.1, missing DTLS peer certificate fingerprint validation in the DTLS client (active) role removes one side of WebRTC's mutual authentication. The bug is not independently exploitable for media interception in standard deployments, but enables a full man-in-the-middle attack when chained with insecure signalling or a peer with similar validation gaps. This vulnerability is fixed in 0.15.1 and 0.16.1.

CVSS: 8.7 HIGH (v4.0, CNA)CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N
Weakness (CWE): CWE-295
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: GitHub_M
NVD analysis: Deferred
Record last updated: May 15, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

elixir-webrtc ex_webrtc elixir_webrtc:ex_webrtc (from the name)	before 0.15.1; from 0.16.0, < 0.16.1	CNA record

References

References

https://github.com/elixir-webrtc/ex_webrtc/security/advisories/GHSA-qwfw-ggxw-577c	x-refsource-confirm
https://github.com/elixir-webrtc/ex_webrtc/issues/249	x-refsource-misc
https://github.com/elixir-webrtc/ex_webrtc/pull/250	x-refsource-misc
https://github.com/elixir-webrtc/ex_webrtc/releases/tag/v0.15.1	x-refsource-misc
https://github.com/elixir-webrtc/ex_webrtc/releases/tag/v0.16.1	x-refsource-misc

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.