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CVE-2026-73851

Published Aug 17, 2026 CWE-22 EPSS 1.48% (72th pctl)

Overview

CVE-2026-73851 is a known-severity vulnerability. It was published on August 17, 2026.

Technical Description

Kiota is an OpenAPI based HTTP Client code generator. Prior to 1.29.1 and 1.34.0, an attacker who controls or tampers with the OpenAPI description consumed by Kiota can supply a file reference that resolves outside the manifest package (e.g. ../../../../etc/passwd, an absolute path, or a file:// / http(s):// URI). When the generated manifest is deployed and consumed by an AI host, this can lead to inclusion or disclosure of files outside the intended package boundary. This vulnerability is fixed in 1.29.1 and 1.34.0.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

GitHub github.com/microsoft/kiota/commit/430008e9d700b3fe80f206c672415cfbd8e830e7 GitHub github.com/microsoft/kiota/commit/de3d18d9fe31ced4ac749728d3a2f94811f59268 GitHub github.com/microsoft/kiota/issues/7912 GitHub github.com/microsoft/kiota/pull/7910 GitHub github.com/microsoft/kiota/pull/7913 GitHub github.com/microsoft/kiota/releases/tag/v1.29.1 GitHub github.com/microsoft/kiota/releases/tag/v1.34.0 GitHub github.com/microsoft/kiota/security/advisories/GHSA-p5rm-jg5c-8c77

Frequently Asked Questions

What is CVE-2026-73851?

CVE-2026-73851 is a known-severity vulnerability. It was published on August 17, 2026.

How severe is CVE-2026-73851?

CVSS score information is not yet available for this vulnerability. Check back as the CVE record is updated by NVD analysts.

How do I fix or remediate CVE-2026-73851?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2026-73851?

CyberStrike's AI-powered security agents can automatically detect CVE-2026-73851 across your infrastructure using autonomous pentesting, DAST scanning, and HackBrowser. The platform continuously monitors for known vulnerabilities and provides actionable remediation guidance prioritized by real-world exploitability.

How CyberStrike Helps

Autonomous Discovery

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Continuous Pentesting

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Code Review

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HackBrowser

Browser-based exploitation validates findings with real proof-of-concept.
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