A maliciously crafted claim may be incorrectly authenticated by the bot.
Key facts
- Attack vector
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- Privileges required
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- User interaction
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- Attack complexity
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- Impact type
- Security bypass
- Confidentiality · integrity · availability
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- Fix status
- Fixed
No CVSS vector from any source. Fix status from GitHub. Impact type from CWE-287.
Summary
### 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](https://github.com/microsoft/botbuilder-dotnet) * Email us at [[email protected]](mailto:[email protected])
Why it matters now
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | Microsoft.Bot.Connector (NuGet) | 4.6.0 to before 4.6.4 | 4.6.4 | Patch available | GHSA-qxx8-292g-2w66 |
| — | Microsoft.Bot.Connector (NuGet) | 4.7.0 to before 4.7.3 | 4.7.3 | Patch available | GHSA-qxx8-292g-2w66 |
| — | Microsoft.Bot.Connector (NuGet) | 4.8.0 to before 4.8.2 | 4.8.2 | Patch available | GHSA-qxx8-292g-2w66 |
| — | Microsoft.Bot.Connector (NuGet) | 4.9.0 to before 4.9.5 | 4.9.5 | Patch available | GHSA-qxx8-292g-2w66 |
| — | Microsoft.Bot.Connector (NuGet) | 4.10.0 to before 4.10.3 | 4.10.3 | Patch available | GHSA-qxx8-292g-2w66 |
- Microsoft.Bot.Connector (NuGet) Vendor— Affected 4.6.0 to before 4.6.4 Fixed in 4.6.4 Patch available GHSA-qxx8-292g-2w66
- Microsoft.Bot.Connector (NuGet) Vendor— Affected 4.7.0 to before 4.7.3 Fixed in 4.7.3 Patch available GHSA-qxx8-292g-2w66
- Microsoft.Bot.Connector (NuGet) Vendor— Affected 4.8.0 to before 4.8.2 Fixed in 4.8.2 Patch available GHSA-qxx8-292g-2w66
- Microsoft.Bot.Connector (NuGet) Vendor— Affected 4.9.0 to before 4.9.5 Fixed in 4.9.5 Patch available GHSA-qxx8-292g-2w66
- Microsoft.Bot.Connector (NuGet) Vendor— Affected 4.10.0 to before 4.10.3 Fixed in 4.10.3 Patch available GHSA-qxx8-292g-2w66
Remediation
- Fix · GHSA-qxx8-292g-2w66 Microsoft.Bot.Connector (NuGet) Fixed in 4.6.4 Advisory →
- Fix · GHSA-qxx8-292g-2w66 Microsoft.Bot.Connector (NuGet) Fixed in 4.7.3 Advisory →
- Fix · GHSA-qxx8-292g-2w66 Microsoft.Bot.Connector (NuGet) Fixed in 4.8.2 Advisory →
- Fix · GHSA-qxx8-292g-2w66 Microsoft.Bot.Connector (NuGet) Fixed in 4.9.5 Advisory →
- Fix · GHSA-qxx8-292g-2w66 Microsoft.Bot.Connector (NuGet) Fixed in 4.10.3 Advisory →
Timeline
- 2026-10-03 Threatist record created from GHSA-qxx8-292g-2w66
References
Sources
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences