Vim: Vimscript Code Injection in netrw NetrwBookHistSave() via crafted directory name
21Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 7.3epss 0.2%
exploitation probability
0.2%top 84% of all CVEs
observed exploitation
nono source reports it
Vim is an open source, command line text editor. Prior to version 9.2.0495, a Vimscript code injection vulnerability exists in s:NetrwBookHistSave() in the netrw plugin (runtime/pack/dist/opt/netrw/autoload/netrw.vim) when serializing browsed directory paths to the history file ~/.vim/.netrwhist. A directory name derived from the filesystem is interpolated into a single-quoted Vimscript string literal without escaping embedded single quotes, allowing a crafted directory name to break out of the string context and execute arbitrary Vimscript, including shell commands via system() and :!, the next time the history file is sourced. This issue has been patched in version 9.2.0495.
CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Affected products
vim · vimReferences
https://access.redhat.com/errata/RHSA-2026:38509https://access.redhat.com/errata/RHSA-2026:38510https://access.redhat.com/errata/RHSA-2026:38511https://access.redhat.com/errata/RHSA-2026:53371https://access.redhat.com/security/cve/CVE-2026-47162https://bugzilla.redhat.com/show_bug.cgi?id=2487964https://github.com/vim/vim/commit/f08ab2f4d7d2947c8dd6c179ae08ee6146a2694bhttps://github.com/vim/vim/releases/tag/v9.2.0495https://github.com/vim/vim/security/advisories/GHSA-crm5-rh6j-2c7chttps://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-47162.json