GHSA-29r8-gvx4-r9w3
HIGHGHSA-29r8-gvx4-r9w3 is a high-severity (CVSS 8.8) CWE-639 vulnerability in ralffreit/mfa-email. O3 Security confirms whether GHSA-29r8-gvx4-r9w3 is actually reachable in your code before you act, and blocks exploitation at runtime until you patch.
Authentication Bypass in extension "E-Mail MFA Provider" (mfa_email)
Blast Radius
ralffreit/mfa-email🐘ralffreit/mfa-emailReal-time download stats are indexed for npm and PyPI packages. This vulnerability affects Packagist packages — download data is not available via public APIs for these ecosystems.
Description
The extension fails to properly reset the generated MFA code after successful authentication. This leads to a possible MFA bypass for future login attempts by providing an empty string as MFA code to the extensions MFA provider.
Affected Packages
| Ecosystem | Package | Vulnerable range | Fix |
|---|---|---|---|
| 🐘Packagist | ralffreit/mfa-email | all versions | 1.0.7 |
| 🐘Packagist | ralffreit/mfa-email | ≥ 2.0.0&&< 2.0.1 | 2.0.1 |
Detection & mitigation playbook
Open-source dependencyDetect
Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for ralffreit/mfa-email. 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 ralffreit/mfa-email to 1.0.7 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-29r8-gvx4-r9w3 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-29r8-gvx4-r9w3 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-29r8-gvx4-r9w3. 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-29r8-gvx4-r9w3 in your dependencies?
O3 detects GHSA-29r8-gvx4-r9w3 across Packagist dependencies and uses function-level reachability to confirm whether the vulnerable code path is actually reachable — not just present. No false positives.