The SentinelOne Annual Threat Report - A Defenders Guide from the FrontlinesThe SentinelOne Annual Threat ReportGet the Report
Experiencing a Breach?Blog
Get StartedContact Us
SentinelOne
  • Platform
    Platform Overview
    • Singularity Platform
      Welcome to Integrated Enterprise Security
    • AI for Security
      Leading the Way in AI-Powered Security Solutions
    • Securing AI
      Accelerate AI Adoption with Secure AI Tools, Apps, and Agents.
    • How It Works
      The Singularity XDR Difference
    • Singularity Marketplace
      One-Click Integrations to Unlock the Power of XDR
    • Pricing & Packaging
      Comparisons and Guidance at a Glance
    Data & AI
    • Purple AI
      Accelerate SecOps with Generative AI
    • Singularity Hyperautomation
      Easily Automate Security Processes
    • AI-SIEM
      The AI SIEM for the Autonomous SOC
    • AI Data Pipelines
      Security Data Pipeline for AI SIEM and Data Optimization
    • Singularity Data Lake
      AI-Powered, Unified Data Lake
    • Singularity Data Lake for Log Analytics
      Seamlessly Ingest Data from On-Prem, Cloud or Hybrid Environments
    Endpoint Security
    • Singularity Endpoint
      Autonomous Prevention, Detection, and Response
    • Singularity XDR
      Native & Open Protection, Detection, and Response
    • Singularity RemoteOps Forensics
      Orchestrate Forensics at Scale
    • Singularity Threat Intelligence
      Comprehensive Adversary Intelligence
    • Singularity Vulnerability Management
      Application & OS Vulnerability Management
    • Singularity Identity
      Identity Threat Detection and Response
    Cloud Security
    • Singularity Cloud Security
      Block Attacks with an AI-Powered CNAPP
    • Singularity Cloud Native Security
      Secure Cloud and Development Resources
    • Singularity Cloud Workload Security
      Real-Time Cloud Workload Protection Platform
    • Singularity Cloud Data Security
      AI-Powered Threat Detection for Cloud Storage
    • Singularity Cloud Security Posture Management
      Detect and Remediate Cloud Misconfigurations
    Securing AI
    • Prompt Security
      Secure AI Tools Across Your Enterprise
  • Why SentinelOne?
    Why SentinelOne?
    • Why SentinelOne?
      Cybersecurity Built for What’s Next
    • Our Customers
      Trusted by the World’s Leading Enterprises
    • Industry Recognition
      Tested and Proven by the Experts
    • About Us
      The Industry Leader in Autonomous Cybersecurity
    Compare SentinelOne
    • Arctic Wolf
    • Broadcom
    • CrowdStrike
    • Cybereason
    • Microsoft
    • Palo Alto Networks
    • Sophos
    • Splunk
    • Trellix
    • Trend Micro
    • Wiz
    Verticals
    • Energy
    • Federal Government
    • Finance
    • Healthcare
    • Higher Education
    • K-12 Education
    • Manufacturing
    • Retail
    • State and Local Government
  • Services
    Managed Services
    • Managed Services Overview
      Wayfinder Threat Detection & Response
    • Threat Hunting
      World-Class Expertise and Threat Intelligence
    • Managed Detection & Response
      24/7/365 Expert MDR Across Your Entire Environment
    • Incident Readiness & Response
      DFIR, Breach Readiness, & Compromise Assessments
    Support, Deployment, & Health
    • Technical Account Management
      Customer Success with Personalized Service
    • SentinelOne GO
      Guided Onboarding & Deployment Advisory
    • SentinelOne University
      Live and On-Demand Training
    • Services Overview
      Comprehensive Solutions for Seamless Security Operations
    • SentinelOne Community
      Community Login
  • Partners
    Our Network
    • MSSP Partners
      Succeed Faster with SentinelOne
    • Singularity Marketplace
      Extend the Power of S1 Technology
    • Cyber Risk Partners
      Enlist Pro Response and Advisory Teams
    • Technology Alliances
      Integrated, Enterprise-Scale Solutions
    • SentinelOne for AWS
      Hosted in AWS Regions Around the World
    • Channel Partners
      Deliver the Right Solutions, Together
    • SentinelOne for Google Cloud
      Unified, Autonomous Security Giving Defenders the Advantage at Global Scale
    • Partner Locator
      Your Go-to Source for Our Top Partners in Your Region
    Partner Portal→
  • Resources
    Resource Center
    • Case Studies
    • Data Sheets
    • eBooks
    • Reports
    • Videos
    • Webinars
    • Whitepapers
    • Events
    View All Resources→
    Blog
    • Feature Spotlight
    • For CISO/CIO
    • From the Front Lines
    • Identity
    • Cloud
    • macOS
    • SentinelOne Blog
    Blog→
    Tech Resources
    • SentinelLABS
    • Ransomware Anthology
    • Cybersecurity 101
  • About
    About SentinelOne
    • About SentinelOne
      The Industry Leader in Cybersecurity
    • Investor Relations
      Financial Information & Events
    • SentinelLABS
      Threat Research for the Modern Threat Hunter
    • Careers
      The Latest Job Opportunities
    • Press & News
      Company Announcements
    • Cybersecurity Blog
      The Latest Cybersecurity Threats, News, & More
    • FAQ
      Get Answers to Our Most Frequently Asked Questions
    • DataSet
      The Live Data Platform
    • S Foundation
      Securing a Safer Future for All
    • S Ventures
      Investing in the Next Generation of Security, Data and AI
  • Pricing
Get StartedContact Us
CVE Vulnerability Database
Vulnerability Database/CVE-2026-35207

CVE-2026-35207: Deepin Desktop Environment Disclosure Flaw

CVE-2026-35207 is an information disclosure vulnerability in Deepin Desktop Environment's dde-control-center that allows MITM attackers to intercept avatar traffic. This post covers technical details, affected versions, and patches.

Published: April 9, 2026

CVE-2026-35207 Overview

CVE-2026-35207 is a TLS Certificate Validation Bypass vulnerability affecting the dde-control-center, the control panel of DDE (Deepin Desktop Environment). The plugin-deepinid component, which provides Deepin ID cloud service functionality, is configured to skip TLS certificate verification when fetching user avatars from openapi.deepin.com or other providers.

This insecure configuration creates an opportunity for Man-in-the-Middle (MITM) attackers to intercept network traffic, replace user avatars with malicious or misleading images, and potentially identify users based on their avatar requests.

Critical Impact

Attackers positioned on the network path can intercept and manipulate avatar downloads, enabling user identification and potential social engineering attacks through misleading imagery.

Affected Products

  • dde-control-center versions prior to 6.1.80
  • dde-control-center versions prior to 5.9.9
  • Deepin Desktop Environment with plugin-deepinid

Discovery Timeline

  • 2026-04-09 - CVE CVE-2026-35207 published to NVD
  • 2026-04-09 - Last updated in NVD database

Technical Details for CVE-2026-35207

Vulnerability Analysis

This vulnerability stems from improper certificate validation (CWE-295) in the plugin-deepinid component. When the Deepin ID plugin attempts to download user avatars from remote servers, it explicitly disables SSL/TLS peer verification, accepting any certificate presented by the server without validation.

The vulnerability affects network-based communications and requires user interaction (visiting the control center settings), but no authentication is required for an attacker to exploit it. The impact includes potential confidentiality breach through user identification and integrity compromise through avatar manipulation.

Root Cause

The root cause is the explicit configuration of QSslSocket::VerifyNone in the SSL configuration for network requests. This setting instructs the Qt networking stack to accept any SSL/TLS certificate without verifying the certificate chain, issuer, or validity. This is a common but dangerous pattern often introduced during development to bypass certificate issues and inadvertently left in production code.

The vulnerability exists in the downloadurl.cpp file within the plugin-deepinid source, where avatar download requests are configured to skip certificate verification entirely.

Attack Vector

An attacker must be positioned on the network path between the victim's system and the avatar server (Man-in-the-Middle position). This could be achieved through:

  1. Compromised network infrastructure (routers, switches)
  2. ARP spoofing on local networks
  3. DNS poisoning to redirect requests
  4. Rogue Wi-Fi access points

Once positioned, the attacker can present their own certificate (which will be accepted without verification) and serve arbitrary content in response to avatar requests.

cpp
// Vulnerable code pattern from downloadurl.cpp
// Source: https://github.com/linuxdeepin/dde-control-center/commit/cd95b054ff10a35bc9284431631305bd56244b3d

    request.setUrl(QUrl(url));
    request.setAttribute(QNetworkRequest::FollowRedirectsAttribute, true);

+    QSslConfiguration config = QSslConfiguration::defaultConfiguration();
+    config.setPeerVerifyMode(QSslSocket::VerifyNone);
+    request.setSslConfiguration(config);

    connect(m_manager, &QNetworkAccessManager::finished, this, &DownloadUrl::onDownloadFileComplete);

    m_manager->get(request);

Detection Methods for CVE-2026-35207

Indicators of Compromise

  • Unexpected network connections to non-standard SSL/TLS endpoints during dde-control-center usage
  • Certificate warnings or errors in system logs that were subsequently bypassed
  • Modified or unexpected avatar images appearing in the Deepin control center
  • Network traffic anomalies during user authentication or profile loading

Detection Strategies

  • Monitor for SSL/TLS connections from dde-control-center processes that accept invalid or self-signed certificates
  • Implement network-level TLS inspection to identify connections with certificate validation failures
  • Review system logs for plugin-deepinid related network activity to unusual destinations
  • Deploy endpoint detection rules to flag applications making insecure HTTPS connections

Monitoring Recommendations

  • Enable verbose logging for Qt network operations on systems running affected versions
  • Monitor outbound connections from dde-control-center to openapi.deepin.com and related endpoints
  • Implement certificate transparency monitoring for expected avatar hosting domains
  • Deploy SentinelOne agents configured to detect anomalous network behavior from desktop environment components

How to Mitigate CVE-2026-35207

Immediate Actions Required

  • Update dde-control-center to version 6.1.80 or later (for 6.x branch)
  • Update dde-control-center to version 5.9.9 or later (for 5.x branch)
  • Restrict network access to known-good avatar provider endpoints via firewall rules
  • Consider disabling the Deepin ID cloud service functionality until patches are applied

Patch Information

The vulnerability has been fixed in dde-control-center versions 6.1.80 and 5.9.9. The patches enable proper TLS certificate verification for avatar download operations. For detailed information, refer to the GitHub Security Advisory and the related pull request #3146.

Security patches are available at:

  • Commit 6fc20612
  • Commit cd95b054

Workarounds

  • Avoid using public or untrusted Wi-Fi networks when using Deepin ID features
  • Disable the Deepin ID cloud service integration in dde-control-center settings
  • Use a VPN to encrypt network traffic and reduce MITM attack surface
  • Block outbound connections from dde-control-center to external avatar providers at the network level
bash
# Temporary workaround: Block avatar download endpoints via iptables
# Note: This will prevent avatar loading but mitigates the MITM risk
sudo iptables -A OUTPUT -p tcp -d openapi.deepin.com --dport 443 -m owner --uid-owner $(id -u) -j DROP

Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.

  • Vulnerability Details
  • TypeInformation Disclosure

  • Vendor/TechDde Control Center

  • SeverityMEDIUM

  • CVSS Score5.4

  • Known ExploitedNo
  • CVSS Vector
  • CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N
  • Impact Assessment
  • ConfidentialityLow
  • IntegrityLow
  • AvailabilityNone
  • CWE References
  • CWE-295
  • Technical References
  • GitHub Commit Update

  • GitHub Commit Update

  • GitHub Pull Request

  • GitHub Security Advisory
  • Latest CVEs
  • CVE-2026-8468: Elixir Plug Library DoS Vulnerability

  • CVE-2026-8295: simdjson Information Disclosure Vulnerability

  • CVE-2025-68421: Comarch ERP Optima Auth Bypass Vulnerability

  • CVE-2025-68420: Comarch ERP Optima Privilege Escalation
Default Legacy - Prefooter | Experience the World’s Most Advanced Cybersecurity Platform

Experience the World’s Most Advanced Cybersecurity Platform

See how our intelligent, autonomous cybersecurity platform can protect your organization now and into the future.

Try SentinelOne
  • Get Started
  • Get a Demo
  • Product Tour
  • Why SentinelOne
  • Pricing & Packaging
  • FAQ
  • Contact
  • Contact Us
  • Customer Support
  • SentinelOne Status
  • Language
  • Platform
  • Singularity Platform
  • Singularity Endpoint
  • Singularity Cloud
  • Singularity AI-SIEM
  • Singularity Identity
  • Singularity Marketplace
  • Purple AI
  • Services
  • Wayfinder TDR
  • SentinelOne GO
  • Technical Account Management
  • Support Services
  • Verticals
  • Energy
  • Federal Government
  • Finance
  • Healthcare
  • Higher Education
  • K-12 Education
  • Manufacturing
  • Retail
  • State and Local Government
  • Cybersecurity for SMB
  • Resources
  • Blog
  • Labs
  • Case Studies
  • Videos
  • Product Tours
  • Events
  • Cybersecurity 101
  • eBooks
  • Webinars
  • Whitepapers
  • Press
  • News
  • Ransomware Anthology
  • Company
  • About Us
  • Our Customers
  • Careers
  • Partners
  • Legal & Compliance
  • Security & Compliance
  • Investor Relations
  • S Foundation
  • S Ventures

©2026 SentinelOne, All Rights Reserved.

Privacy Notice Terms of Use

English