Heap-based Buffer Overflow Affecting vim package, versions <9.2.0452-r0


Severity

Recommended
0.0
medium
0
10

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Threat Intelligence

EPSS
0% (1st percentile)

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  • Snyk IDSNYK-ALPINE323-VIM-16542166
  • published9 May 2026
  • disclosed8 May 2026

Introduced: 8 May 2026

NewCVE-2026-45130  (opens in a new tab)
CWE-122  (opens in a new tab)
CWE-190  (opens in a new tab)

How to fix?

Upgrade Alpine:3.23 vim to version 9.2.0452-r0 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream vim package and not the vim package as distributed by Alpine. See How to fix? for Alpine:3.23 relevant fixed versions and status.

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.

CVSS Base Scores

version 3.1