Pion WebRTC before 3.0.15 didn't properly tear down the DTLS Connection when certificate…
Priority LOW 25CWE-863Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- None · Low · None
- Fix status
- Fixed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA and GitHub. Impact type from CWE-863.
Summary
Pion WebRTC before 3.0.15 didn't properly tear down the DTLS Connection when certificate verification failed. The PeerConnectionState was set to failed, but a user could ignore that and continue to use the PeerConnection. )A WebRTC implementation shouldn't allow the user to continue if verification has failed.)
Why it matters now
EPSS 0.00677 52nd percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix Fixed github.com/pion/webrtc/v3 (Go): 3.0.15
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
| — | github.com/pion/webrtc/v3 (Go) | before 3.0.15 | 3.0.15 | Patch available | GHSA-74xm-qj29-cq8p |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
- github.com/pion/webrtc/v3 (Go) Vendor— Affected before 3.0.15 Fixed in 3.0.15 Patch available GHSA-74xm-qj29-cq8p
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:webrtc_project:webrtc:*:*:*:*:*:*:*:* | before 3.0.15 | Vulnerable | Webrtc Project |
- cpe:2.3:a:webrtc_project:webrtc:*:*:*:*:*:*:*:* Versions before 3.0.15 Vulnerable ·Webrtc Project
Remediation
- Fix · GHSA-74xm-qj29-cq8p github.com/pion/webrtc/v3 (Go) Fixed in 3.0.15 Advisory →
Timeline
- 2026-10-02 Threatist record created from CVE-2021-28681
- 2026-10-03 Alias added: GHSA-74xm-qj29-cq8p
References
Advisory 2
More Webrtc Project Webrtc vulnerabilities
- TI-2022-02117 Out-of-bounds write in Google Chrome KEVCVSS 3.1HIGH 8.8
- TI-2016-01809 Multiple race conditions in dom/media/systemservices/CamerasChild.cpp in the WebRTC… CVSS 3.0MEDIUM 6.3
- TI-2016-01810 Use-after-free vulnerability in the DesktopDisplayDevice class in the WebRTC… CVSS 3.0MEDIUM 5.5
Sources
- CVE-2021-28681 · CVE Program
- CVE-2021-28681 · NVD
- FIRST EPSS
- GHSA-74xm-qj29-cq8p · GitHub Advisory Database · CC BY 4.0
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