---
id: CVE-2026-90455
title: >-
  A prior update that raised a bundled HTTP client library to a version
  remediating known vulnerabilities was later reverted, reintroducing the
  earlier, vulnerable version into a log-processing component
summary: >-
  A prior update that raised a bundled HTTP client library to a version
  remediating known vulnerabilities was later reverted, reintroducing the
  earlier, vulnerable version into a log-processing component. The only code
  path in that compone…
severity: low
cvss: 3.7
cvssVector: 'CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N'
cwe:
  - CWE-1395
vendor: CISA
product: Malcolm
affected:
  - Malcolm < v26.06.0
published: '2026-09-11'
updated: '2026-10-02'
sourceUpdated: '2026-10-02T21:16:57.650'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-90455'
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
  - url: 'https://www.cisa.gov/news-events/ics-advisories/icsa-26-254-01'
    label: ics-cert@hq.dhs.gov
tags:
  - nvd
  - cve.org
  - score-dispute
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-09-14T12:54:38.295969Z'
epss: 0.00199
epssPercentile: 0.09636
scores:
  nvd: 3.7
  cna: 6.3
ingestedAt: '2026-09-14T15:23:07.429Z'
---

## Overview

A prior update that raised a bundled HTTP client library to a version remediating known vulnerabilities was later reverted, reintroducing the earlier, vulnerable version into a log-processing component. The only code path in that component using the library issues a request to a single fixed, trusted vendor URL at initialization and does not process attacker-controlled input through the library, limiting practical exploitability of the reintroduced version in this context.

## Remediation

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