CVE-2026-32148: Hex Silent Checksum Bypass

When a dynamically generated atom (`String.to_atom/1`) is pinned in a pattern match inside a `case` statement, matching against structures with strings causes silent fall-through to the catch-all branch. In contexts like package resolution, this can silently bypass dependency signature and checksum evaluations, allowing tampered packages to be installed and

Provally CuratedPublic repositoryHighMedium confidenceVerifiedApache-2.0Elixir
greprules fetch cve-2026-32148-hex-silent-checksum-bypass --engine opengrep

Description

When a dynamically generated atom (`String.to_atom/1`) is pinned in a pattern match inside a `case` statement, matching against structures with strings causes silent fall-through to the catch-all branch. In contexts like package resolution, this can silently bypass dependency signature and checksum evaluations, allowing tampered packages to be installed and