GHSA-765j-9r45-w2q2 is a medium-severity (CVSS 6.5) Improper Authentication vulnerability in flask-appbuilder. O3 Security confirms whether GHSA-765j-9r45-w2q2 is actually reachable in your code before you act, and blocks exploitation at runtime until you patch.
Flask App Builder has an Authentication Bypass vulnerability when using non AUTH_DB methods
Real-World Exposure
flask-appbuilderReal-time download stats are indexed for npm and PyPI packages. This vulnerability affects PyPI packages — download data is not available via public APIs for these ecosystems.
Description
Impact
When Flask-AppBuilder is configured to use OAuth, LDAP, or other non-database authentication methods, the password reset endpoint remains registered and accessible, despite not being displayed in the user interface. This allows an enabled user to reset their password and be able to create JWT tokens even after the user is disabled on the authentication provider.
Patches
Upgrade to Flask-AppBuilder version 4.8.1 or later
Workarounds
If immediate upgrade is not possible:
- Manually disable password reset routes in the application configuration
- Implement additional access controls at the web server or proxy level to block access to the reset my password URL.
- Monitor for suspicious password reset attempts from disabled accounts
Affected Packages
| Ecosystem | Package | Vulnerable range | Fix |
|---|---|---|---|
| 🐍PyPI | flask-appbuilder | all versions | 4.8.1 |
Detection & mitigation playbook
Open-source dependencyDetect
Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for flask-appbuilder. 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 flask-appbuilder to 4.8.1 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-765j-9r45-w2q2 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-765j-9r45-w2q2 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-765j-9r45-w2q2. 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-765j-9r45-w2q2 in your dependencies?
O3 detects GHSA-765j-9r45-w2q2 across PyPI dependencies and uses function-level reachability to confirm whether the vulnerable code path is actually reachable — not just present. No false positives.