CVE WatchOct 26, 2026

CVE-2026-40489

editorconfig-core-c is an EditorConfig core library for use by plugins supporting EditorConfig parsing. Versions up to and including 0.12.1

CVSS

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No CVSS

EPSS

0.2%

KEV

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Exploit Today

0-100

Published: Apr 18, 2026 · Last modified: Oct 26, 2026 · CWE-121 · CWE-787

EPSS · 30d

0.2%EPSS · 30 days0.2%

2026-10-022026-10-29

Technical 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.

Official references

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