---
id: CVE-2026-109358
title: >-
  Edgeless Systems Contrast 1.8.0 before 1.24.1 contains an incorrect
  permissions vulnerability where the node installer writes the containerd
  config world-writable (0666)
summary: >-
  Edgeless Systems Contrast 1.8.0 before 1.24.1 contains an incorrect
  permissions vulnerability where the node installer writes the containerd
  config world-writable (0666). Local unprivileged users on the node can modify
  the containerd con…
severity: high
cvss: 7.8
cvssVector: 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H'
cwe:
  - CWE-732
vendor: edgelesssys
product: contrast
affected:
  - contrast >= 1.8.0 < 1.24.1
published: '2026-10-12'
updated: '2026-10-16'
sourceUpdated: '2026-10-16T19:03:18.127'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-109358'
references:
  - url: >-
      https://github.com/edgelesssys/contrast/security/advisories/GHSA-376m-h37w-4rvq
    label: disclosure@vulncheck.com
  - url: >-
      https://www.vulncheck.com/advisories/edgeless-systems-contrast-1.8.0-before-1.24.1-world-writable-containerd-config-privilege-escalation
    label: disclosure@vulncheck.com
tags:
  - nvd
  - cve.org
epss: 0.00107
epssPercentile: 0.01166
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: total
  timestamp: '2026-10-13T16:20:21.833463Z'
ingestedAt: '2026-10-12T18:00:08.213Z'
---

## Overview

Edgeless Systems Contrast 1.8.0 before 1.24.1 contains an incorrect permissions vulnerability where the node installer writes the containerd config world-writable (0666). Local unprivileged users on the node can modify the containerd config, for example overwriting the runc location, to escalate privileges.

## Remediation

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