# CVE-2026-59865: Microsoft Kiota command injection in kiota info via OpenAPI extension

Source: https://junglewise.ai/threats/cve-2026-59865-microsoft-kiota-command-injection-in-kiota-info-via-openapi  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-07-16. Updated: 2026-07-24  
License: CC BY 4.0 with a link back

CVE-2026-59865 · Severity: critical · CVSS 4 · Published 2026-07-16

Microsoft Kiota is a tool used by developers to generate software code for interacting with web services. A security flaw allowed malicious web service descriptions to trick the tool into recommending and potentially automatically running harmful commands on a developer's computer. This could lead to a complete takeover of the developer's workstation or automated build systems if they use the Kiota command-line tool or its VS Code extension with a compromised service definition.

Technologies: [Microsoft Kiota](https://junglewise.ai/threats/technologies/kiota), [Microsoft.OpenApi.Kiota](https://junglewise.ai/threats/technologies/microsoft-openapi-kiota), [Microsoft.OpenApi.Kiota.Builder](https://junglewise.ai/threats/technologies/microsoft-openapi-kiota-builder), [Microsoft.OpenApi.Kiota (NuGet)](https://junglewise.ai/threats/technologies/nuget-microsoft-openapi-kiota), [Microsoft.OpenApi.Kiota.Builder (NuGet)](https://junglewise.ai/threats/technologies/nuget-microsoft-openapi-kiota-builder). Vendors: [Microsoft](https://junglewise.ai/threats/vendors/microsoft), [NuGet](https://junglewise.ai/threats/vendors/nuget).

## Quick answers

**Is CVE-2026-59865 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-59865 being exploited in the wild.

**How severe is CVE-2026-59865?** Critical severity, with a CVSS score of 4, published 16 July 2026.

**Which products and versions are affected?** Microsoft Kiota < 1.32.5; Microsoft.OpenApi.Kiota < 1.32.5; Microsoft.OpenApi.Kiota.Builder < 1.32.4, < 1.32.5; Microsoft.OpenApi.Kiota (NuGet) ECOSYSTEM:introduced=1.30.0,fixed=1.32.5; and 1 more.

**Is there a fix for CVE-2026-59865?** Yes. Microsoft.OpenApi.Kiota (NuGet): upgrade to 1.32.5 or later; Microsoft.OpenApi.Kiota.Builder (NuGet): upgrade to 1.32.5 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**How is CVE-2026-59865 attacked?** It is attacked over the network, in a software library.

**Am I affected by CVE-2026-59865?** Check whether you run Microsoft Kiota, Microsoft.OpenApi.Kiota, Microsoft.OpenApi.Kiota.Builder or one of the others listed at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## How to fix

- Microsoft.OpenApi.Kiota (NuGet): upgrade to 1.32.5 or later

  ```sh
  dotnet add package Microsoft.OpenApi.Kiota --version 1.32.5
  ```

- Microsoft.OpenApi.Kiota.Builder (NuGet): upgrade to 1.32.5 or later

  ```sh
  dotnet add package Microsoft.OpenApi.Kiota.Builder --version 1.32.5
  ```


## Technical details

A command injection vulnerability exists in Microsoft Kiota due to improper handling of the 'x-ms-kiota-info' extension in OpenAPI descriptions. The 'kiota info' command and the associated VS Code extension would read the 'dependencyInstallCommand' field from an untrusted OpenAPI spec and present or execute it as a trusted recommendation. An attacker can provide a crafted OpenAPI description containing malicious shell commands in this field. When a developer runs 'kiota info' or uses the IDE extension to install dependencies, the attacker-controlled command is executed with the privileges of the user. The fix in version 1.32.5 removes support for spec-supplied install commands entirely.

## Affected products

- Microsoft Microsoft.OpenApi.Kiota < 1.32.5
- Microsoft Microsoft.OpenApi.Kiota.Builder < 1.32.5

## Identifiers

- CVE-2026-59865
- GHSA-hq9q-27g5-qwpj

## Timeline

- 2026-07-03: disclosed: Initial disclosure to Microsoft
- 2026-07-16: advisory: NVD publication date
- 2026-07-24: patched: GitHub Advisory published and fix confirmed in 1.32.5

## References

- [https://api.github.com/users/Gal3m](https://api.github.com/users/Gal3m)
- [https://github.com/Gal3m](https://github.com/Gal3m)
- [https://api.github.com/users/Gal3m/gists%7B/gist_id%7D](https://api.github.com/users/Gal3m/gists%7B/gist_id%7D)
- [https://api.github.com/users/Gal3m/repos](https://api.github.com/users/Gal3m/repos)
- [https://avatars.githubusercontent.com/u/91008976?v=4](https://avatars.githubusercontent.com/u/91008976?v=4)
- [https://api.github.com/users/Gal3m/events%7B/privacy%7D](https://api.github.com/users/Gal3m/events%7B/privacy%7D)

## Related threats

- [Microsoft Kiota documentation-comment injection in Java and PHP](https://junglewise.ai/threats/cve-2026-105796-kiota-is-an-openapi-based-http-client-code-generator-from-0-5-0)
- [Kiota: Unsafe oauth_card_path references in Kiota-generated API plugin manifests](https://junglewise.ai/threats/cve-2026-105795-kiota-is-an-openapi-based-http-client-code-generator-from-1-25-1)
- [Microsoft Kiota path traversal in plugin manifest via percent-encoding bypass](https://junglewise.ai/threats/cve-2026-73851-microsoft-kiota-path-traversal-in-plugin-manifest-via-percent)
- [Microsoft Kiota SSRF and File Inclusion via OpenAPI external references](https://junglewise.ai/threats/cve-2026-59867-microsoft-kiota-ssrf-and-file-inclusion-via-openapi-external)
- [Microsoft Kiota path traversal and code injection in OpenAPI generation](https://junglewise.ai/threats/cve-2026-59866-microsoft-kiota-path-traversal-and-code-injection-in-openapi)