---
id: CVE-2026-90446
title: >-
  An application programming interface endpoint accepts a user-supplied value
  and interpolates it directly into the path of a backend request to the
  underlying search and analytics data store, without restricting its contents
summary: >-
  An application programming interface endpoint accepts a user-supplied value
  and interpolates it directly into the path of a backend request to the
  underlying search and analytics data store, without restricting its contents.
  This allows …
severity: medium
cvss: 5.3
cvssVector: 'CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N'
cwe:
  - CWE-918
vendor: CISA
product: Malcolm
affected:
  - Malcolm < v26.06.0
published: '2026-09-11'
updated: '2026-09-18'
sourceUpdated: '2026-09-18T19:40:31.053'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-90446'
references:
  - url: >-
      https://raw.githubusercontent.com/cisagov/CSAF/develop/csaf_files/OT/white/2026/icsa-26-254-01.json
    label: ics-cert@hq.dhs.gov
tags:
  - nvd
  - cve.org
epss: 0.00351
epssPercentile: 0.25933
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-09-14T19:34:30.854585Z'
cvssSource: cna
ingestedAt: '2026-09-14T11:11:19.875Z'
---

## Overview

An application programming interface endpoint accepts a user-supplied value and interpolates it directly into the path of a backend request to the underlying search and analytics data store, without restricting its contents. This allows an authenticated attacker to substitute an arbitrary backend path, causing the application's own elevated service credentials to be used against unintended internal endpoints. This could allow an attacker to enumerate or read internal configuration and administrative data from the backend data store that would otherwise be restricted.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.