GHSA-74xm-qj29-cq8p is a medium-severity (CVSS 5.3) vulnerability in github.com/pion/webrtc/v3. 1 public exploit reference exists, so weaponization risk is real. O3 Security confirms whether GHSA-74xm-qj29-cq8p is actually reachable in your code before you act, and blocks exploitation at runtime until you patch.
In github.com/pion/webrtc, failed DTLS certificate verification doesn't stop data channel communication
Real-World Exposure
github.com/pion/webrtc/v3Real-time download stats are indexed for npm and PyPI packages. This vulnerability affects Go packages — download data is not available via public APIs for these ecosystems.
Description
Impact
Data channel communication was incorrectly allowed with users who have failed DTLS certificate verification.
This attack requires
- Attacker knows the ICE password.
- Only take place during PeerConnection handshake.
This attack can be detected by monitoring PeerConnectionState in all versions of Pion WebRTC.
Patches
Users should upgrade to v3.0.15.
The exact patch is https://github.com/pion/webrtc/commit/545613dcdeb5dedb01cce94175f40bcbe045df2e
Workarounds
Users should listen for when PeerConnectionState changes to PeerConnectionStateFailed. When it enters this state users should not continue using the PeerConnection.
For more information
If you have any questions or comments about this advisory:
- Open an issue in https://github.com/pion/webrtc
- Email us at [email protected]
Thank you to https://github.com/Gaukas for discovering this.
Affected Packages
| Ecosystem | Package | Vulnerable range | Fix |
|---|---|---|---|
| 🐹Go | github.com/pion/webrtc/v3 | all versions | 3.0.15 |
Research use only. For defensive security, authorized penetration testing, and academic research only. Never execute exploit code against systems without explicit written authorization.
Detection & mitigation playbook
Open-source dependencyDetect
Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for github.com/pion/webrtc/v3. O3's reachability analysis confirms whether the vulnerable code path is actually invoked in your application, so you act on real exposure instead of every transitive match.
Fix
Update github.com/pion/webrtc/v3 to 3.0.15 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-74xm-qj29-cq8p is resolved across your whole dependency graph.
Workarounds
If you can't upgrade right away: gate or disable the affected feature, validate untrusted input at the boundary, and avoid passing attacker-controlled data into the vulnerable path. O3's runtime protection blocks exploitation in production as an interim safeguard until the upgrade lands.
How O3 protects you
O3 pinpoints whether GHSA-74xm-qj29-cq8p is reachable in your code and exactly where to fix it, then blocks exploitation in production at runtime until the patched version is deployed.
Tailored to GHSA-74xm-qj29-cq8p. Runtime protection reduces exposure until a permanent patch is applied and verified — it complements patching, it doesn't replace it.
Frequently Asked Questions
Is GHSA-74xm-qj29-cq8p in your dependencies?
O3 detects GHSA-74xm-qj29-cq8p across Go dependencies and uses function-level reachability to confirm whether the vulnerable code path is actually reachable — not just present. No false positives.