CVE-2026-45130
6.6 · MEDIUMOverview
CVE-2026-45130 is a medium-severity vulnerability affecting neovim neovim. It was published on May 8, 2026 and has a CVSS 3.1 base score of 6.6 (MEDIUM).
This vulnerability has a CVSS 3.1 base score of 6.6, rated MEDIUM. It requires local or adjacent network access to exploit. No authentication or special privileges are required for exploitation.
Technical Description
Vim is an open source, command line text editor. Prior to version 9.2.0450, a heap buffer overflow exists in read_compound() in src/spellfile.c when loading a crafted spell file (.spl) with UTF-8 encoding active. An attacker-controlled length field in the spell file's compound section overflows a 32-bit signed integer multiplication, causing a small buffer to be allocated for a write loop that runs many iterations, overflowing the heap. Because the 'spelllang' option can be set from a modeline, a text file modeline can trigger spell file loading if a malicious .spl file has been planted on the runtimepath. This issue has been patched in version 9.2.0450.
Remediation
Check the references section for vendor advisories and patches from neovim. Update neovim to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
Affected Products
| Vendor | Product | Versions | Status |
|---|---|---|---|
| neovim | neovim | 0 | Affected |
| vim | vim | >= 0, < 9.2.0450 | Affected |
Frequently Asked Questions
What is CVE-2026-45130?
CVE-2026-45130 is a medium-severity vulnerability affecting neovim neovim. It was published on May 8, 2026 and has a CVSS 3.1 base score of 6.6 (MEDIUM).
How severe is CVE-2026-45130?
This vulnerability has a CVSS 3.1 base score of 6.6, rated MEDIUM. It requires local or adjacent network access to exploit. No authentication or special privileges are required for exploitation.
How do I fix or remediate CVE-2026-45130?
Check the references section for vendor advisories and patches from neovim. Update neovim to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
How can CyberStrike help with CVE-2026-45130?
CyberStrike's AI-powered security agents can automatically detect CVE-2026-45130 across your infrastructure using autonomous pentesting, DAST scanning, and HackBrowser. The platform continuously monitors for known vulnerabilities and provides actionable remediation guidance prioritized by real-world exploitability.
How CyberStrike Helps
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