CVE-2026-26269
Last modified
CVE-2026-26269 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. Vim is an open source, command line text editor. Prior to 9.1.2148, a stack buffer overflow vulnerability exists in Vim's NetBeans integration when processing the specialKeys command, affecting Vim builds that enable and use the NetBeans feature. EPSS estimates a 0.28% chance of exploitation in the next 30 days.
Description
Vim is an open source, command line text editor. Prior to 9.1.2148, a stack buffer overflow vulnerability exists in Vim's NetBeans integration when processing the specialKeys command, affecting Vim builds that enable and use the NetBeans feature. The Stack buffer overflow exists in special_keys() (in src/netbeans.c). The while (*tok) loop writes two bytes per iteration into a 64-byte stack buffer (keybuf) with no bounds check. A malicious NetBeans server can overflow keybuf with a single specialKeys command. The issue has been fixed as of Vim patch v9.1.2148.
Metrics
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Vim | Vim | < 9.1.2148 |
References
- https://github.com/vim/vim/releases/tag/v9.1.2148Release Notes
- https://github.com/vim/vim/security/advisories/GHSA-9w5c-hwr9-hc68Patch, Vendor Advisory
- http://www.openwall.com/lists/oss-security/2026/02/13/2Mailing List, Patch, Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Analyzed
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