PT-2026-33581 · Unknown+2 · Editorconfig-Core-C+2

CVE-2026-40489 · Published 2026-04-18 · Updated 2026-07-02

Positive Technologies (AI Summary)

CVSS v4.0

8.6

High

Base vector

AV:L/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Name of the Vulnerable Software and Affected Versions editorconfig-core-c versions prior to 0.12.11

Description A stack-based buffer overflow exists in the ec glob() function. An attacker can cause a crash in any application using libeditorconfig by providing a specially crafted directory structure and .editorconfig file. This occurs because the l pattern[8194] stack buffer lacks adequate protection, whereas the pcre str buffer was previously secured.

Recommendations Update to version 0.12.11.

Exploit

Fix

DoS

Memory Corruption

Stack Overflow

Weakness Enumeration

CWE-787

CWE-121

Related Identifiers

CVE-2026-40489

GHSA-97XG-VRCQ-254H

OESA-2026-2258

OESA-2026-2259

OESA-2026-2260

OPENSUSE-SU-2026:10663-1

OPENSUSE-SU-2026:20966-1

SUSE-SU-2026:22125-1

SUSE-SU-2026:2731-1

USN-8238-1

USN-8238-2

Affected Products

Linuxmint

Ubuntu

Editorconfig-Core-C

References · 31

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/40xxx/CVE-2026-40489.json · Exploit
• https://osv.dev/vulnerability/openSUSE-SU-2026:20966-1 · Vendor Advisory
• https://ubuntu.com/security/notices/USN-8238-1 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2026-40489 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2026-40489 · Vendor Advisory
• https://ubuntu.com/security/notices/USN-8238-2 · Vendor Advisory
• https://osv.dev/vulnerability/USN-8238-1 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2026:22125-1 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2026-40489 · Security Note
• https://osv.dev/vulnerability/OESA-2026-2259 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2026-40489 · Vendor Advisory
• https://osv.dev/vulnerability/openSUSE-SU-2026:10663-1 · Vendor Advisory
• https://osv.dev/vulnerability/OESA-2026-2258 · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2026-40489 · Vendor Advisory
• https://osv.dev/vulnerability/OESA-2026-2260 · Vendor Advisory