InternationalColorConsortium iccDEV up to 2.3.1.1 CIccTagLut8::Validate heap-based overflow

Summaryinfo

A vulnerability, which was classified as critical, has been found in InternationalColorConsortium iccDEV up to 2.3.1.1. Affected is the function CIccTagLut8::Validate. The manipulation leads to heap-based overflow. This vulnerability is uniquely identified as CVE-2026-21494. The attack is possible to be carried out remotely. No exploit exists. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability was found in InternationalColorConsortium iccDEV up to 2.3.1.1. It has been rated as critical. This issue affects the function CIccTagLut8::Validate. The manipulation with an unknown input leads to a heap-based overflow vulnerability. Using CWE to declare the problem leads to CWE-122. A heap overflow condition is a buffer overflow, where the buffer that can be overwritten is allocated in the heap portion of memory, generally meaning that the buffer was allocated using a routine such as malloc(). Impacted is confidentiality, integrity, and availability. The summary by CVE is:

iccDEV provides a set of libraries and tools that allow for the interaction, manipulation, and application of International Color Consortium (ICC) color management profiles. A vulnerability present in versions prior to 2.3.1.2 affects users of the iccDEV library who process ICC color profiles. It results in heap buffer overflow in `CIccTagLut8::Validate()`. Version 2.3.1.2 contains a patch. No known workarounds are available.

It is possible to read the advisory at github.com. The identification of this vulnerability is CVE-2026-21494 since 12/29/2025. The exploitation is known to be easy. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. It demands that the victim is doing some kind of user interaction. Technical details of the vulnerability are known, but there is no available exploit.

Upgrading to version 2.3.1.2 eliminates this vulnerability. Applying the patch 7c2cb719a9de1c00844e457e070d657314383ee3 is able to eliminate this problem. The bugfix is ready for download at github.com. The best possible mitigation is suggested to be upgrading to the latest version.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2026-1146). Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Vendor

• InternationalColorConsortium

Name

• iccDEV

Version

• 2.3.1.0
• 2.3.1.1

License

• open-source

Website

• Product: https://github.com/InternationalColorConsortium/iccDEV/

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