CVE-2026-40489CWE-121CWE-787

editorconfig-core-c has incomplete fix for CVE-2023-0341

High · published April 18, 2026

CVSS v4.0
8.6
EPSS
0%
Percentile
8.4
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v4.0
8.6 · HIGH
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
EPSS
0.00192 · 8.4th percentile
Weaknesses
CWE-121 · Stack-based Buffer Overflow; CWE-787 · Out-of-bounds Write
Published
2026-04-18T01:24Z
EPSS history
Timeline
  • 18 APR 01:24Z
    editorconfig-core-c has incomplete fix for CVE-2023-0341
    cvelistv5