CVE-2026-40489

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Source
https://cve.org/CVERecord?id=CVE-2026-40489
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-40489.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-40489
Aliases
  • GHSA-97xg-vrcq-254h
Downstream
Related
Published
2026-04-18T01:24:57.278Z
Modified
2026-08-12T16:24:06.265954Z
Severity
  • 8.6 (High) CVSS_V4 - 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 CVSS Calculator
Summary
editorconfig-core-c has incomplete fix for CVE-2023-0341
Details

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 ecglob() 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 pcrestr buffer was protected in 0.12.6 but the adjacent lpattern[8194] stack buffer received no equivalent protection. On Ubuntu 24.04, FORTIFYSOURCE converts the overflow to SIGABRT (DoS). Version 0.12.11 contains an updated fix.

Database specific 
{
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/40xxx/CVE-2026-40489.json",
    "cwe_ids": [
        "CWE-121",
        "CWE-787"
    ],
    "cna_assigner": "GitHub_M"
}
References

Affected packages

Git / github.com/editorconfig/editorconfig-core-c

Affected ranges

Type
GIT
Repo
https://github.com/editorconfig/editorconfig-core-c
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
5159be88ad50641d9843289adda791ba300421ff
Fixed
0ba157eff167c1b2d1bc0c3e13975b7a73fb9d25
Database specific
Show details 
{
    "source": [
        "AFFECTED_FIELD",
        "REFERENCES"
    ],
    "extracted_events": [
        {
            "introduced": "0"
        },
        {
            "fixed": "0.12.11"
        }
    ]
}

Affected versions

v0.*
v0.10.0
v0.11.0
v0.11.3
v0.11.4
v0.11.5
v0.12.0
v0.12.0-alpha1
v0.12.0-beta
v0.12.1
v0.12.10
v0.12.2
v0.12.3
v0.12.4
v0.12.5
v0.12.6
v0.12.7
v0.12.8
v0.12.9
v0.8.0
v0.9.0
v0.9.1

Database specific

vanir_signatures 
[
    {
        "id": "CVE-2026-40489-3621160f",
        "target": {
            "function": "ec_glob",
            "file": "src/lib/ec_glob.c"
        },
        "deprecated": false,
        "digest": {
            "function_hash": "113504869699976989321234718115873762603",
            "length": 4558.0
        },
        "signature_version": "v1",
        "source": "https://github.com/editorconfig/editorconfig-core-c/commit/5159be88ad50641d9843289adda791ba300421ff",
        "signature_type": "Function"
    },
    {
        "id": "CVE-2026-40489-3646f6de",
        "target": {
            "file": "src/lib/ec_glob.c"
        },
        "deprecated": false,
        "digest": {
            "threshold": 0.9,
            "line_hashes": [
                "118771220304447511001250232753974064498",
                "263396701957562860683093336295544499960",
                "212725471622076258926958822295147843625",
                "324446910542984109512982903483050839781",
                "161666992118196387847668957860246513980"
            ]
        },
        "signature_version": "v1",
        "source": "https://github.com/editorconfig/editorconfig-core-c/commit/5159be88ad50641d9843289adda791ba300421ff",
        "signature_type": "Line"
    }
]
source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-40489.json"
vanir_signatures_modified 
"2026-08-12T16:24:06Z"