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.
History

Mon, 20 Apr 2026 17:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Mon, 20 Apr 2026 15:15:00 +0000

Type Values Removed Values Added
First Time appeared Editorconfig
Editorconfig editorconfig
Vendors & Products Editorconfig
Editorconfig editorconfig

Sat, 18 Apr 2026 01:45:00 +0000

Type Values Removed Values Added
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.
Title editorconfig-core-c has incomplete fix for CVE-2023-0341
Weaknesses CWE-121
CWE-787
References
Metrics cvssV4_0

{'score': 8.6, 'vector': 'CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N'}


cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published: 2026-04-18T01:24:57.278Z

Updated: 2026-04-20T16:15:31.570Z

Reserved: 2026-04-13T19:50:42.114Z

Link: CVE-2026-40489

cve-icon Vulnrichment

Updated: 2026-04-20T16:10:37.295Z

cve-icon NVD

Status : Deferred

Published: 2026-04-18T02:16:11.827

Modified: 2026-04-20T18:59:16.353

Link: CVE-2026-40489

cve-icon Redhat

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