Little CMS (lcms2) 2.16 through 2.18 before 2.19 has an integer overflow in ParseCube in cmscgats.c.

References

• https://github.com/mm2/Little-CMS/commit/6a686019825a89b715d16671f18d049523354176
• https://github.com/mm2/Little-CMS/compare/lcms2.18...lcms2.19
• https://www.openwall.com/lists/oss-security/2026/04/30/8