io.js versions were inserted into node's version list immediately before the `v4.0.0` line.
Whenever node's filtered list did not contain that exact line,
every io.js version was appended after all node versions,
including newer ones,
so `nvm_remote_version`'s `tail -1` could pick an io.js version over the latest matching node version.
Node's list is sorted,
so it is now split at the first version with a nonzero major,
which keeps io.js versions between node v0.x and node v4+ regardless of which node versions the pattern matched
Discovered by Anthropic's OSS Scanner, as ANT-2026-AKH0HYWD; the scanner reported it as a vulnerability, but it is not one.
59e008fd62