GHSA-qxx8-292g-2w66
Improper Authentication
GHSA-qxx8-292g-2w66 is a vulnerability with no CVSS score yet in Microsoft.Bot.Connector, published March 8, 2021. No source lists public exploit code. Fixed in Microsoft.Bot.Connector 4.6.4.
- Severity
- UnratedNo CVSS score yet
- Exploit chance
- UnscoredNo EPSS score yet
- Exploitation
- None knownNot on CISA’s or ENISA’s lists
- Fixed in
4.6.4Microsoft.Bot.Connector +8 more
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 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 bf-reports@microsoft.com
Affected packages
| Package | Affected | Fixed |
|---|---|---|
Microsoft.Bot.ConnectorNuGet | 4.6.0 up to 4.6.4 | 4.6.4 |
Microsoft.Bot.ConnectorNuGet | 4.7.0 up to 4.7.3 | 4.7.3 |
Microsoft.Bot.ConnectorNuGet | 4.8.0 up to 4.8.2 | 4.8.2 |
Microsoft.Bot.ConnectorNuGet | 4.9.0 up to 4.9.5 | 4.9.5 |
Microsoft.Bot.ConnectorNuGet | 4.10.0 up to 4.10.3 | 4.10.3 |
Microsoft.Bot.ConnectorNuGet | 4.6.0 up to 4.6.4, plus listed versions 4.6.14.6.24.6.3 | 4.6.4 |
Microsoft.Bot.ConnectorNuGet | 4.7.0 up to 4.7.3, plus listed versions 4.7.14.7.2 | 4.7.3 |
Microsoft.Bot.ConnectorNuGet | 4.9.0 up to 4.9.5, plus listed versions 4.9.14.9.24.9.34.9.4 | 4.9.5 |
Microsoft.Bot.ConnectorNuGet | 4.10.0 up to 4.10.3, plus listed versions 4.10.2 | 4.10.3 |
What each source reports
GitHub AdvisoriesNo score
Improper Authentication
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 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 bf-reports@microsoft.com
- Record
GHSA-qxx8-292g-2w66- Weakness
- CWE-287
- Updated
- 2026-11-02
OSVNo score
Improper Authentication
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 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 bf-reports@microsoft.com
- Record
GHSA-qxx8-292g-2w66- Weakness
- CWE-287
- Updated
- 2026-11-02
History
| Recorded | Changed | Sources |
|---|---|---|
| first indexed | GitHub Advisories, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.