Microsoft.OpenApi.Kiota.Builder Known Vulnerabilities & Fixes
Microsoft.OpenApi.Kiota.Builder has 10 known security vulnerabilities in NuGet (.NET). Upgrade to version 1.35.0 or later to resolve all known issues. Data sourced from OSV, enriched with EPSS exploit probability and CISA KEV.
Low Immediate Risk
No actively exploited vulnerabilities detected. Monitor and update in your next maintenance window.
Recommended safe version: 1.35.0
Upgrading to 1.35.0 or later resolves all 10 known vulnerabilities in Microsoft.OpenApi.Kiota.Builder. Run: dotnet add package Microsoft.OpenApi.Kiota.Builder --version 1.35.0
Is Microsoft.OpenApi.Kiota.Builder in your project?
Check if you're affected and upgrade to 1.35.0 to stay secure.
Security Summary
- 19 affected version ranges have been identified across these 10 advisories.
- 100% of known issues have a published fixed version.
- Remediation: dotnet add package Microsoft.OpenApi.Kiota.Builder
Vulnerabilities
10 unique vulnerabilities — sorted by exploitation risk (KEV → EPSS → CVSS). Click a CVE/GHSA ID for full details. First disclosed Jul 24, 2026, most recently Oct 6, 2026 (74 days apart).
| CVE / GHSA | Severity | Affected | Fixed In |
|---|---|---|---|
| CVE-2026-59865 Microsoft Kiota: Command injection via x-ms-kiota-info dependencyInstallCommand surfaced by `kiota info` | CRITICAL | 0.2.0-preview, 0.3.0-preview, 0.4.0-preview, 0.5.0-preview (+42 more) | 1.32.5, 1.29.1 |
| CVE-2026-59864 Microsoft Kiota: Path/URL injection into generated Copilot plugin manifest via x-ai-* extensions | CRITICAL | 0.2.0-preview, 0.3.0-preview, 0.4.0-preview, 0.5.0-preview (+42 more) | 1.32.5, 1.29.1 |
| CVE-2026-59859 Microsoft Kiota: Code Generation Literal Injection in Kiota PHP Generator | HIGH | 0.2.0-preview, 0.3.0-preview, 0.4.0-preview, 0.5.0-preview (+42 more) | 1.32.4, 1.29.1 |
| CVE-2026-59860 Microsoft Kiota: XML Doc-Comment Newline Breakout Code Injection | HIGH | 0.2.0-preview, 0.3.0-preview, 0.4.0-preview, 0.5.0-preview (+42 more) | 1.32.3, 1.29.1 |
| CVE-2026-105796 Kiota: Code injection through doc-comment delimiter reformation in Kiota Java and PHP generators | HIGH | 0.5.1-preview, 0.6.0-preview, 0.7.1-preview, 1.0.0 (+38 more) | 1.35.0 |
| CVE-2026-59862 Microsoft Kiota: Code Generation Literal Injection in Kiota Python Generator | HIGH | 0.2.0-preview, 0.3.0-preview, 0.4.0-preview, 0.5.0-preview (+42 more) | 1.32.0, 1.29.1 |
| CVE-2026-59861 Microsoft Kiota: Code Generation Literal Injection in Kiota Ruby Generator | HIGH | 0.2.0-preview, 0.3.0-preview, 0.4.0-preview, 0.5.0-preview (+42 more) | 1.32.0, 1.29.1 |
| CVE-2026-59863 Microsoft Kiota Workspace-config poisoning: out-of-repo file write + generation-time SSRF | HIGH | 0.2.0-preview, 0.3.0-preview, 0.4.0-preview, 0.5.0-preview (+42 more) | 1.32.5, 1.29.1 |
| CVE-2026-59867 Microsoft Kiota: Generation-time SSRF + remote/local file inclusion via unrestricted $ref | HIGH | 0.2.0-preview, 0.3.0-preview, 0.4.0-preview, 0.5.0-preview (+42 more) | 1.32.5, 1.29.1 |
| CVE-2026-59866 Microsoft Kiota: Arbitrary file write + code-injection via x-ms-kiota-info clientClassName and clientNamespaceName | HIGH | 0.2.0-preview, 0.3.0-preview, 0.4.0-preview, 0.5.0-preview (+42 more) | 1.32.5, 1.29.1 |
About This Data
Vulnerability data for Microsoft.OpenApi.Kiota.Builder is sourced from the Open Source Vulnerability (OSV) database, aggregating reports from GitHub Advisory Database, NIST NVD, and ecosystem-specific sources.
CVSS (Common Vulnerability Scoring System) scores reflect exploitability and impact. EPSS (Exploit Prediction Scoring System) scores indicate the probability of exploitation within the next 30 days. Vulnerabilities marked with are listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.
Related NuGet (.NET) Packages
Other packages in this ecosystem, ranked by shared vulnerabilities where available.
Check Your Dependencies
Scan your project to check if you're using a vulnerable version of Microsoft.OpenApi.Kiota.Builder.