CVE-2026-34533 | THREATINT

Description

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.

PUBLISHED Reserved 2026-03-30 | Published 2026-03-31 | Updated 2026-04-03 | Assigner GitHub_M

MEDIUM: 6.2CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Problem types

CWE-758: Reliance on Undefined, Unspecified, or Implementation-Defined Behavior

Product status

< 2.3.1.6

affected

References

github.com/...iccDEV/security/advisories/GHSA-8jj3-77m7-c3pq

github.com/InternationalColorConsortium/iccDEV/issues/664

github.com/InternationalColorConsortium/iccDEV/pull/681

cve.org (CVE-2026-34533)

nvd.nist.gov (CVE-2026-34533)

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