CVE-2026-56392

GNU coreutils unexpand is vulnerable to a heap-based buffer overflow caused by an integer overflow in the multiplication that calculates buffer allocation size when processing large tab stop (-t ) values. The wrap-around produces an undersized buffer, and subsequent writes during crafted input pr...

CVE-2026-56392

GNU coreutils unexpand is vulnerable to a heap-based buffer overflow due to an integer overflow during buffer allocation when processing large tab stop -t values. The multiplication used to calculate the allocation size can wrap around, resulting in an undersized buffer. When processing crafted...