CVE-2026-55693 Vim: Out-of-bounds Write in Spell File Word Count

Vim is an open source, command line text editor. Prior to 9.2.0653, the treecountwords function in src/spellfile.c fills in the word-count fields of a spell-file word trie by walking it iteratively with a depth counter. The counter is bounded only by the trie structure itself; it is never checked...

PT-2026-52472

Name of the Vulnerable Software and Affected Versions Vim versions prior to 9.2.0653 Description The tree count words function in src/spellfile.c fails to validate a depth counter against the size of fixed MAXWLEN-element stack arrays, specifically arridx, curi, and wordcount. A specially crafted...