CVE-2026-44700
CVE-2026-44700 is a high-severity vulnerability with a CVSS 4.0 base score of 8.7. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-295.
Key facts
- Severity: High (CVSS 4.0 base score 8.7)
- EPSS exploit prediction: 0% (17th percentile)
- Actively exploited: Not listed in CISA KEV
- EU (EUVD) id: EUVD-2026-30486
- Weakness: CWE-295
- Published:
- Last modified:
Description
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.
Frequently asked questions
- What is CVE-2026-44700?
- 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.
- How severe is CVE-2026-44700?
- CVE-2026-44700 has a CVSS 4.0 base score of 8.7, rated high severity.
- Is CVE-2026-44700 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (17th percentile), an estimate of the probability of exploitation in the next 30 days.
- How do I fix CVE-2026-44700?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
- Does CVE-2026-44700 have an EU (EUVD) identifier?
- Yes. CVE-2026-44700 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-30486.
- When was CVE-2026-44700 published?
- CVE-2026-44700 was published on 2026-05-14 and last updated on 2026-06-17.
References
- https://github.com/elixir-webrtc/ex_webrtc/issues/249
- https://github.com/elixir-webrtc/ex_webrtc/pull/250
- https://github.com/elixir-webrtc/ex_webrtc/releases/tag/v0.15.1
- https://github.com/elixir-webrtc/ex_webrtc/releases/tag/v0.16.1
- https://github.com/elixir-webrtc/ex_webrtc/security/advisories/GHSA-qwfw-ggxw-577c
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