CVE-2026-57454

Weakness

Vim is an open source, command line text editor. From 9.2.0320 until 9.2.0679, a crafted undo or swap file can store a virtual-text property whose offset and length point outside the line's property data. When Vim restores or displays such a line it converts the offset into a pointer and reads the virtual text without bounds checking, causing an out-of-bounds read that can crash Vim or disclose adjacent heap memory. This vulnerability is fixed in 9.2.0679.

Affected products

• vim vim

References

• https://github.com/vim/vim/commit/b3faeecc976d3031d7c0675623516ec60c30f949
• https://github.com/vim/vim/releases/tag/v9.2.0679
• https://github.com/vim/vim/security/advisories/GHSA-ww8h-47xp-hp4w