Medium severity6.6NVD Advisory· Published Feb 6, 2026· Updated Jun 9, 2026
CVE-2026-25749
CVE-2026-25749
Description
Vim is an open source, command line text editor. Prior to version 9.1.2132, a heap buffer overflow vulnerability exists in Vim's tag file resolution logic when processing the 'helpfile' option. The vulnerability is located in the get_tagfname() function in src/tag.c. When processing help file tags, Vim copies the user-controlled 'helpfile' option value into a fixed-size heap buffer of MAXPATHL + 1 bytes (typically 4097 bytes) using an unsafe STRCPY() operation without any bounds checking. This issue has been patched in version 9.1.2132.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
11- osv-coords7 versionspkg:rpm/almalinux/vim-commonpkg:rpm/almalinux/vim-datapkg:rpm/almalinux/vim-enhancedpkg:rpm/almalinux/vim-filesystempkg:rpm/almalinux/vim-minimalpkg:rpm/almalinux/vim-X11pkg:rpm/almalinux/xxd
< 2:8.0.1763-22.el8_10+ 6 more
- (no CPE)range: < 2:8.0.1763-22.el8_10
- (no CPE)range: < 2:9.1.083-6.el10_1.1
- (no CPE)range: < 2:8.0.1763-22.el8_10
- (no CPE)range: < 2:8.0.1763-22.el8_10
- (no CPE)range: < 2:8.0.1763-22.el8_10
- (no CPE)range: < 2:8.0.1763-22.el8_10
- (no CPE)range: < 2:9.1.083-6.el10_1.1
Patches
Vulnerability mechanics
References
3- github.com/vim/vim/commit/0714b15940b245108e6e9d7aa2260dd849a26fa9nvdPatch
- github.com/vim/vim/security/advisories/GHSA-5w93-4g67-mm43nvdExploitPatchVendor Advisory
- github.com/vim/vim/releases/tag/v9.1.2132nvdProduct
News mentions
0No linked articles in our index yet.