CVE-2026-21690
📋 TL;DR
CVE-2026-21690 is a type confusion vulnerability in iccDEV's CIccTagXmlTagData::ToXml() function that could allow memory corruption when processing malicious ICC color profiles. This affects applications using iccDEV libraries for color management. Successful exploitation could lead to crashes or arbitrary code execution.
💻 Affected Systems
- iccDEV library
- Applications using iccDEV for ICC profile processing
📦 What is this software?
Iccdev by Color
⚠️ Risk & Real-World Impact
Worst Case
Remote code execution leading to complete system compromise if the vulnerable library processes attacker-controlled ICC profiles.
Likely Case
Application crashes (denial of service) when processing malformed ICC profiles, potentially disrupting color management functionality.
If Mitigated
Limited impact with proper input validation and sandboxing, potentially only causing application instability.
🎯 Exploit Status
Exploitation requires crafting malicious ICC profiles and triggering the vulnerable function.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 2.3.1.2
Vendor Advisory: https://github.com/InternationalColorConsortium/iccDEV/security/advisories/GHSA-2f26-vh48-38g6
Restart Required: Yes
Instructions:
1. Update iccDEV to version 2.3.1.2 or later. 2. Recompile applications using the library. 3. Restart affected services.
🔧 Temporary Workarounds
No known workarounds
allThe vendor advisory states no workarounds are available.
🧯 If You Can't Patch
- Implement strict input validation for ICC profile files before processing.
- Sandbox applications using iccDEV to limit potential damage from exploitation.
🔍 How to Verify
Check if Vulnerable:
Check if applications link to iccDEV library version < 2.3.1.2 using ldd (Linux) or dependency walker tools.Check Version:
Check library version in build configuration or use package manager queries specific to your distribution.Verify Fix Applied:
Verify iccDEV version is 2.3.1.2 or higher and applications have been recompiled with the updated library.📡 Detection & Monitoring
Log Indicators:
- Application crashes when processing ICC profiles
- Memory access violation errors in application logs
Network Indicators:
- Unusual ICC profile uploads to web applications
- Large or malformed ICC profile transfers
SIEM Query:
Application logs containing 'segmentation fault', 'access violation', or similar errors during ICC profile processing.