GHSA-fvcj-hvfw-7f2v
MEDIUMGHSA-fvcj-hvfw-7f2v is a medium-severity (CVSS 5.5) Improper Authentication vulnerability in botframework-connector. O3 Security confirms whether GHSA-fvcj-hvfw-7f2v is actually reachable in your code before you act, and blocks exploitation at runtime until you patch.
botframework-connector vulnerable to Improper Authentication
Real-World Exposure
botframework-connector📦botframework-connector📦botframework-connector📦botframework-connectorReal-time download stats are indexed for npm and PyPI packages. This vulnerability affects npm packages — download data is not available via public APIs for these ecosystems.
Description
Impact
A maliciously crafted claim may be incorrectly authenticated by the bot. Impacts bots that are not configured to be used as a Skill. This vulnerability requires an attacker to have internal knowledge of the bot.
Patches
The problem has been patched in all affected versions. Please see the list of patched versions for the most appropriate one for your individual case.
Workarounds
Users who do not wish or are not able to upgrade can add an authentication configuration containing ClaimsValidator, which throws an exception if the Claims are Skill Claims.
For detailed instructions, see the link in the References section.
For more information
If you have any questions or comments about this advisory:
- Open an issue in Microsoft Bot Builder SDK
- Email us at [email protected]
Affected Packages
| Ecosystem | Package | Vulnerable range | Fix |
|---|---|---|---|
| 📦npm | botframework-connector | ≥ 4.7.0&&< 4.7.3 | 4.7.3 |
| 📦npm | botframework-connector | ≥ 4.8.0&&< 4.8.1 | 4.8.1 |
| 📦npm | botframework-connector | ≥ 4.9.0&&< 4.9.4 | 4.9.4 |
| 📦npm | botframework-connector | ≥ 4.10.0&&< 4.10.3 | 4.10.3 |
Detection & mitigation playbook
Open-source dependencyDetect
Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for botframework-connector. 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 botframework-connector to 4.7.3 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-fvcj-hvfw-7f2v 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-fvcj-hvfw-7f2v 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-fvcj-hvfw-7f2v. 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-fvcj-hvfw-7f2v in your dependencies?
O3 detects GHSA-fvcj-hvfw-7f2v across npm dependencies and uses function-level reachability to confirm whether the vulnerable code path is actually reachable — not just present. No false positives.