Medium severity · published Aug 17, 2026
CVE-2026-73851
Kiota: Path traversal in generated plugin manifest static_template.file reference (percent-encoding bypass)
6.1
CVSS
2.3%
EPSS
No
On KEV
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.
Exploitation
Is it being used?
Exploit prediction (EPSS)2.3% · higher than 83% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
KI
kiota · microsoft
>= 1.30.0, < 1.34.0; < 1.29.1 · source: vendor
Affected product
KI
kiota
microsoft
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