Answer in brief
CVE-2026-73851 records a Medium severity vulnerability in Kiota: Path traversal in generated plugin manifest static_template.file reference (percent-encoding bypass). The current sources do not mark it as known exploited. The current feed maps microsoft/kiota (generic), Microsoft.OpenApi.Kiota (nuget), Microsoft.OpenApi.Kiota (nuget). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
Answer in brief
CVE-2026-73851 records a Medium severity vulnerability in Kiota: Path traversal in generated plugin manifest static_template.file reference (percent-encoding bypass). The current sources do not mark it as known exploited. The current feed maps microsoft/kiota (generic), Microsoft.OpenApi.Kiota (nuget), Microsoft.OpenApi.Kiota (nuget). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
A CVSS score is not reported in the current record. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps microsoft/kiota (generic), Microsoft.OpenApi.Kiota (nuget), Microsoft.OpenApi.Kiota (nuget). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| microsoft/kiotageneric | >= 1.30.0, < 1.34.0 || < 1.29.1 | Not reported |
| Microsoft.OpenApi.Kiotanuget | >=1.30.0,<1.34.0 | 1.34.0 |
| Microsoft.OpenApi.Kiotanuget | <1.29.1 | 1.29.1 |
Published upstream
Aug 17, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 17, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Aug 17, 2026
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.
Quoted source text, attributed separately from HOL analysis.
A CVSS score is not reported in the current record. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps microsoft/kiota (generic), Microsoft.OpenApi.Kiota (nuget), Microsoft.OpenApi.Kiota (nuget). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| microsoft/kiotageneric | >= 1.30.0, < 1.34.0 || < 1.29.1 | Not reported |
| Microsoft.OpenApi.Kiotanuget | >=1.30.0,<1.34.0 | 1.34.0 |
| Microsoft.OpenApi.Kiotanuget | <1.29.1 | 1.29.1 |
Published upstream
Aug 17, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 17, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Aug 17, 2026
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.
Quoted source text, attributed separately from HOL analysis.