CVE-2026-33491

{"id": "CVE-2026-33491", "cveTags": [], "metrics": {"cvssMetricV31": [{"type": "Secondary", "source": "security-advisories@github.com", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 7.8, "attackVector": "LOCAL", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "REQUIRED", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}, "impactScore": 5.9, "exploitabilityScore": 1.8}]}, "published": "2026-03-26T19:17:04.333", "references": [{"url": "https://github.com/zenc-lang/zenc/security/advisories/GHSA-rv74-w6q7-h8xr", "tags": ["Exploit", "Mitigation", "Vendor Advisory"], "source": "security-advisories@github.com"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Primary", "source": "security-advisories@github.com", "description": [{"lang": "en", "value": "CWE-121"}, {"lang": "en", "value": "CWE-787"}]}], "descriptions": [{"lang": "en", "value": "Zen C is a systems programming language that compiles to human-readable GNU C/C11. Prior to version 0.4.4, a stack-based buffer overflow vulnerability in the Zen C compiler allows attackers to cause a compiler crash or potentially execute arbitrary code by providing a specially crafted Zen C source file (`.zc`) with excessively long struct, function, or trait identifiers. Users are advised to update to Zen C version v0.4.4 or later to receive a patch."}, {"lang": "es", "value": "Zen C es un lenguaje de programaci\u00f3n de sistemas que compila a GNU C/C11 legible por humanos. Antes de la versi\u00f3n 0.4.4, una vulnerabilidad de desbordamiento de b\u00fafer basado en pila en el compilador de Zen C permite a los atacantes causar un fallo del compilador o potencialmente ejecutar c\u00f3digo arbitrario al proporcionar un archivo fuente de Zen C especialmente dise\u00f1ado ('.zc') con identificadores de estructura, funci\u00f3n o rasgo excesivamente largos. Se aconseja a los usuarios actualizar a la versi\u00f3n v0.4.4 de Zen C o posterior para recibir un parche."}], "lastModified": "2026-04-02T18:22:46.130", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:z-libs:zen_c:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "1E99D9DF-A1A1-4BC9-8F4E-AD1C71070E9D", "versionEndExcluding": "0.4.4"}], "operator": "OR"}]}], "sourceIdentifier": "security-advisories@github.com"}