CVE-2026-25749

Vim (editor) is affected by CVE-2026-25749 prior to version 9.1.2132, where the tag file resolution logic mishandles the helpfile option. In get_tagfname() (src/tag.c) the user-controlled helpfile value is copied into a fixed-size heap buffer (MAXPATHL+1, ~4097 bytes) via an unsafe STRCPY without...