What’s Vulnerable › Vulnerabilities

CVE-2024-53849: Several stack buffer overflows and pointer overflows in editorconfig-core-c

• Severity: medium (CVSS 4.8 v4.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2024-11-27 · updated 2026-06-17
• Weakness: CWE-121

Description

editorconfig-core-c is theEditorConfig core library written in C (for use by plugins supporting EditorConfig parsing). In affected versions several overflows may occur in switch case '[' when the input pattern contains many escaped characters. The added backslashes leave too little space in the output pattern when processing nested brackets such that the remaining input length exceeds the output capacity. This issue has been addressed in release version 0.12.7. Users are advised to upgrade. There are no known workarounds for this vulnerability.

Affected products

• EditorConfig C Core: before 0.12.7 — fixed in 0.12.7

How to fix

Upgrade to a fixed version: EditorConfig C Core 0.12.7. Check the vendor advisory for mitigations.

References

• http://editorconfig.org
• https://github.com/editorconfig/editorconfig-core-c/commit/4d5518a0a4e4910c37281ab13a048d0d86999782
• https://github.com/editorconfig/editorconfig-core-c/commit/a8dd5312e08abeab95ff5656d32ed3cb85fba70b
• https://github.com/editorconfig/editorconfig-core-c/pull/103
• https://github.com/editorconfig/editorconfig-core-c/security/advisories/GHSA-475j-wc37-6274
• https://lists.debian.org/debian-lts-announce/2024/11/msg00036.html

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