CVE-2026-42199: Becheran Grid

Medium severity, CVSS 6.2. EPSS: 0.2% chance of exploitation in the next 30 days.

Grid is a data structure grid for rust. From version 0.17.0 to before version 1.0.1, an integer overflow in Grid::expand_rows() can corrupt the relationship between the grid’s logical dimensions and its backing storage. After the internal invariant is broken, the safe API get() may invoke get_unchecked() with an invalid index, resulting in Undefined Behavior. This issue has been patched in version 1.0.1.

Affected products

• Becheran Grid: from 0.17.0, before 1.0.1 (fixed in 1.0.1)

Published 2026-05-08. Last modified 2026-06-17.