CVE-2026-40489— editorconfig-core-c has incomplete fix for CVE-2023-0341
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I. Basic Information for CVE-2026-40489
Vulnerability Information
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Vulnerability Title
editorconfig-core-c has incomplete fix for CVE-2023-0341
Source: NVD (National Vulnerability Database)
Vulnerability Description
editorconfig-core-c is an EditorConfig core library for use by plugins supporting EditorConfig parsing. Versions up to and including 0.12.10 have a stack-based buffer overflow in ec_glob() that allows an attacker to crash any application using libeditorconfig by providing a specially crafted directory structure and .editorconfig file. This is an incomplete fix for CVE-2023-0341. The pcre_str buffer was protected in 0.12.6 but the adjacent l_pattern[8194] stack buffer received no equivalent protection. On Ubuntu 24.04, FORTIFY_SOURCE converts the overflow to SIGABRT (DoS). Version 0.12.11 contains an updated fix.
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
栈缓冲区溢出
Source: NVD (National Vulnerability Database)
Vulnerability Title
EditorConfig 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
EditorConfig是EditorConfig开源的一个应用程序。使得在不同的文本编辑器和不同的项目之间切换时，可以轻松地保持正确的编码样式。 EditorConfig 0.12.10及之前版本存在安全漏洞，该漏洞源于ec_glob函数存在基于栈的缓冲区溢出，可能导致应用程序崩溃。
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
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| editorconfig | editorconfig-core-c | < 0.12.11 | - |
II. Public POCs for CVE-2026-40489
| # | POC Description | Source Link | Shenlong Link |
|---|
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IV. Related Vulnerabilities
Same weakness: CWE-121
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Integer underflow in crypto_sign_open() leads to buffer over - CVE-2026-8138
Tenda CX12L SetPptpServerCfg” formSetPPTPServer stack-based
V. Comments for CVE-2026-40489
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