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.
Related Weaknesses (CWE)
References
- https://github.com/editorconfig/editorconfig-core-c/commit/5159be88ad50641d98432
- https://github.com/editorconfig/editorconfig-core-c/releases/tag/v0.12.11
- https://github.com/editorconfig/editorconfig-core-c/security/advisories/GHSA-97x
FAQ
What is CVE-2026-40489?
CVE-2026-40489 is a documented vulnerability. 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 allow...
How severe is CVE-2026-40489?
CVSS scoring is not yet available for CVE-2026-40489. Check NVD for updates.
Is there a patch for CVE-2026-40489?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.