Detections
Analytics
SCA: security update for Microsoft.OpenApi.Kiota, Microsoft.OpenApi.Kiota.Builder (GHSA-4vv7-jj25-4gh6)
critical Tenable Self-Hosted Container Security Plugin ID 445269
Description
There are packages installed that are affected by a vulnerability referenced in the following CVE:- Kiota is an OpenAPI based HTTP Client code generator. Prior to 1.32.5, Kiota emitted x-ms-kiota-info
clientClassName and clientNamespaceName values without identifier or path sanitization as both generated
client class or namespace names and generated output path components when `kiota generate` ran without
-c/--class-name, allowing an attacker-controlled or compromised OpenAPI description to write generated
source outside the -o output directory and inject arbitrary text into generated class or namespace
declarations. This issue is fixed in version 1.32.5 by GenerationConfiguration.SanitizeClientClassName and
SanitizeClientNamespaceName. (CVE-2026-59866)
Solution
Update the Microsoft.OpenApi.Kiota library and its related packages to version 1.32.5 or later.See Also
Plugin Details
Severity: Critical
ID: 445269
Version: Revision 1.1
Type: Local
Family: SCA Checks
Published: 7/24/2026
Updated: 7/24/2026
Risk Information
VPR
Risk Factor: Medium
Score: 5.9
Percentile: 96.63
Vendor
Vendor Severity: High
CVSS v2
Risk Factor: High
Base Score: 7.5
Temporal Score: 5.5
Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P
CVSS Score Source: CVE-2026-59866
CVSS v3
Risk Factor: Critical
Base Score: 9.8
Temporal Score: 8.5
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C
CVSS v4
Risk Factor: Critical
Base Score: 9.3
Threat Score: 8.1
Threat Vector: CVSS:4.0/E:U
Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Vulnerability Information
Exploit Ease: No known exploits are available
Patch Publication Date: 7/24/2026
Vulnerability Publication Date: 7/16/2026
Reference Information
CVE: CVE-2026-59866