CVE-2026-45130— Vim: Heap Buffer Overflow in spell file loading
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I. Basic Information for CVE-2026-45130
Vulnerability Information
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Vulnerability Title
Vim: Heap Buffer Overflow in spell file loading
Source: NVD (National Vulnerability Database)
Vulnerability 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.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:H
Source: NVD (National Vulnerability Database)
Vulnerability Type
堆缓冲区溢出
Source: NVD (National Vulnerability Database)
Vulnerability Title
Vim 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Vim是Vim开源的一款跨平台的文本编辑器。 Vim 9.2.0450之前版本存在安全漏洞，该漏洞源于read_compound()中的堆缓冲区溢出，可能导致攻击者利用特制拼写文件溢出堆。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
II. Public POCs for CVE-2026-45130
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Same Patch Batch · vim · 2026-05-08 · 3 CVEs total
| CVE-2026-42307 | 4.4 MEDIUM | Vim: OS Command Injection in netrw |
| CVE-2026-44656 | Vim: OS Command Injection via 'path' completion |
IV. Related Vulnerabilities
Same product: vim
- CVE-2026-44656
Vim: OS Command Injection via 'path' completion - CVE-2026-42307
Vim: OS Command Injection in netrw - CVE-2026-41411
Vim: Command injection via backtick expansion in tag filenam - CVE-2026-39881
Vim Ex command injection in Vims NetBeans integration - CVE-2026-35177
Path traversal issue with zip.vim in Vim
Same vendor: vim
- CVE-2026-44656
Vim: OS Command Injection via 'path' completion - CVE-2026-42307
Vim: OS Command Injection in netrw - CVE-2026-41411
Vim: Command injection via backtick expansion in tag filenam - CVE-2026-39881
Vim Ex command injection in Vims NetBeans integration - CVE-2026-35177
Path traversal issue with zip.vim in Vim
Same weakness: CWE-122
- CVE-2026-8261
Squirrel sqobject.cpp Load heap-based overflow - CVE-2026-8213
OSGeo gdal Grid File GDapi.c GDSDfldsrch heap-based overflow - CVE-2026-8212
OSGeo gdal SWapi.c SWSDfldsrch heap-based overflow - CVE-2026-42309
Pillow: Heap buffer overflow with nested list coordinates - CVE-2026-8087
OSGeo gdal GDapi.c GDnentries heap-based overflow
V. Comments for CVE-2026-45130
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