SCA: security update for Microsoft.OpenApi.Kiota, Microsoft.OpenApi.Kiota.Builder (GHSA-4rj6-vrwv-wr8m)

high Tenable Self-Hosted Container Security Plugin ID 445290

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 honored a poisoned
.kiota/workspace.json workspace configuration without validating per-client or per-plugin outputPath
values during kiota client generate and kiota plugin generate, allowing a malicious repository or pull
request to use absolute paths, rooted POSIX / paths, UNC \\ or // paths, Windows drive X:\ paths, or ..
traversal segments to write generated client files outside the workspace root on a developer or CI host.
This issue is fixed in version 1.32.5. (CVE-2026-59863)

Solution

Update the Microsoft.OpenApi.Kiota library and its related packages to version 1.32.5 or later.

See Also

https://github.com/advisories/GHSA-4rj6-vrwv-wr8m

Plugin Details

Severity: High

ID: 445290

Version: Revision 1.1

Type: Local

Family: SCA Checks

Published: 7/24/2026

Updated: 7/24/2026

Risk Information

VPR

Risk Factor: Medium

Score: 4.3

Percentile: 53.7

Vendor

Vendor Severity: High

CVSS v2

Risk Factor: High

Base Score: 9.4

Temporal Score: 7

Vector: CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:N

CVSS Score Source: CVE-2026-59863

CVSS v3

Risk Factor: Critical

Base Score: 9.1

Temporal Score: 7.9

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

CVSS v4

Risk Factor: High

Base Score: 7

Threat Score: 4.8

Threat Vector: CVSS:4.0/E:U

Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:L/VI:H/VA:L/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-2026-59863