Detections
Analytics

SCA: security update for Microsoft.OpenApi.Kiota, Microsoft.OpenApi.Kiota.Builder (GHSA-rm89-rhwj-9j92)

high Tenable Self-Hosted Container Security Plugin ID 473453

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. From 0.5.0 until 1.35.0, Kiota's Java and PHP
 documentation-comment sanitizers delete block-comment terminators rather than neutralizing them, allowing
 overlapping characters to reform a terminator and place attacker-controlled OpenAPI text outside a
 generated documentation comment. The Java sanitizer also removes non-ASCII characters after deleting
 terminators, which can create a new terminator during normalization. Exploitation requires a developer or
 build pipeline to generate source from the malicious description and then compile and load the Java output
 or load the PHP output, after which injected code executes in the consuming application or build
 environment context. The version range is based on the Java defect and does not assert that PHP generation
 existed in every affected release. This issue is fixed in version 1.35.0. (CVE-2026-105796)

Solution

Update the Microsoft.OpenApi.Kiota library and its related packages to version 1.35.0 or later.

See Also

https://github.com/advisories/GHSA-rm89-rhwj-9j92

Plugin Details

Severity: High

ID: 473453

Version: Revision 1.1

Type: Local

Family: SCA Checks

Published: 10/6/2026

Updated: 10/6/2026

Risk Information

VPR

Risk Factor: Medium

Score: 6.9

Percentile: 96.51

Vendor

Vendor Severity: High

CVSS v2

Risk Factor: Critical

Base Score: 10

Temporal Score: 7.4

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

CVSS Score Source: CVE-2026-105796

CVSS v3

Risk Factor: High

Base Score: 8.8

Temporal Score: 7.7

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

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

Vulnerability Information

Exploit Ease: No known exploits are available

Patch Publication Date: 10/6/2026

Vulnerability Publication Date: 10/6/2026

Reference Information

CVE: CVE-2026-105796

cwe: CWE-94