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CVE-2026-45130

6.6 · MEDIUM

Vim is an open source, command line text editor.

Published May 8, 2026CWE-122EPSS 0.20%

Overview

CVE-2026-45130 is a medium-severity vulnerability. 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, patches, and mitigation guidance. 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.

References

GitHubgithub.com/vim/vim/commit/92993329178cb1f72d700fff45ca86e1c2d369f8GitHubgithub.com/vim/vim/releases/tag/v9.2.0450GitHubgithub.com/vim/vim/security/advisories/GHSA-q4jv-r9gj-6cwvRefwww.openwall.com/lists/oss-security/2026/05/14/3

How CyberStrike helps

Frequently asked questions

What is CVE-2026-45130?

CVE-2026-45130 is a medium-severity vulnerability. 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, patches, and mitigation guidance. 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 is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2026-45130 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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