CVE-2026-34533 in InternationalColorConsortium iccDEV

Summary

iccDEV provides a set of libraries and tools for working with ICC color management profiles. Prior to version 2.3.1.6, a crafted ICC profile can trigger Undefined Behavior (UB) in CIccCalculatorFunc::ApplySequence() due to invalid enum values being loaded for icChannelFuncSignature. The issue is observable under UBSan as a “load of value … not a valid value for type icChannelFuncSignature”, indicating a type/enum value confusion scenario during ICC profile processing. This issue has been patched in version 2.3.1.6.

Responsible

GitHub_M

Reservation

03/30/2026

Disclosure

04/01/2026

Entries

VulDB provides additional information and datapoints for this CVE:

ID	Vulnerability	CWE	Exp	Cou	CVE
354568	InternationalColorConsortium iccDEV ICC ApplySequence reliance on undefined, unspecified, or implementation-defined behavior	758	Not defined	Official fix	CVE-2026-34533