CVE-2026-59865 microsoft CVE debrief

Who should care

Developers and users of Kiota, especially those using versions prior to 1.32.5, should be aware of this vulnerability and take immediate action to update to the patched version. Additionally, operators, platform administrators, vulnerability management teams, and security teams may be impacted by this vulnerability and should review the affected scope and severity.

Technical summary

The vulnerability exists in Kiota's `kiota info` command, which reads x-ms-kiota-info.languagesInformation.<language>.dependencyInstallCommand and dependency name and version values from an OpenAPI description. An attacker could exploit this by providing a compromised OpenAPI description, leading to command injection when the suggested command is run. The vulnerability is caused by the lack of proper validation of OpenAPI descriptions, which allows an attacker to inject malicious commands. The affected product is Kiota, and the vulnerability is fixed in version 1.32.5.

Defensive priority

High

Recommended defensive actions

• Update Kiota to version 1.32.5 or later
• Review and validate OpenAPI descriptions used with Kiota
• Use secure practices when running `kiota info` commands
• Review compensating controls for exposed systems while remediation is scheduled and verified
• Check relevant monitoring, detection, and logs for exposed assets that need extra review
• Track exceptions, retest remediated assets, and close the item only after evidence is documented
• Confirm whether affected product deployments exist in managed environments and assign an owner for follow-up

Evidence notes

The CVE record was published on 2026-07-16T16:19:15.373Z and has not been modified since then. The NVD entry is currently Deferred. There is limited information available about the vulnerability, and defenders should verify the affected scope and severity with the vendor. The Kiota VS Code extension's kiota info --json dependency-install flow may be impacted. Evidence limits suggest that the vulnerability is critical, but additional details are needed for a comprehensive understanding.

Sources and references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.