CVE-2026-26158

{"id": "CVE-2026-26158", "cveTags": [], "metrics": {"cvssMetricV31": [{"type": "Secondary", "source": "secalert@redhat.com", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 7.0, "attackVector": "LOCAL", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "REQUIRED", "attackComplexity": "HIGH", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}, "impactScore": 5.9, "exploitabilityScore": 1.0}]}, "published": "2026-02-11T21:16:21.607", "references": [{"url": "https://access.redhat.com/errata/RHSA-2026:13831", "source": "secalert@redhat.com"}, {"url": "https://access.redhat.com/security/cve/CVE-2026-26158", "source": "secalert@redhat.com"}, {"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2439040", "source": "secalert@redhat.com"}, {"url": "https://git.busybox.net/busybox/commit/archival?id=3fb6b31c716669e12f75a2accd31bb7685b1a1cb", "source": "secalert@redhat.com"}, {"url": "https://cert-portal.siemens.com/productcert/html/ssa-253495.html", "source": "0b142b55-0307-4c5a-b3c9-f314f3fb7c5e"}], "vulnStatus": "Deferred", "weaknesses": [{"type": "Secondary", "source": "secalert@redhat.com", "description": [{"lang": "en", "value": "CWE-73"}]}], "descriptions": [{"lang": "en", "value": "A flaw was found in BusyBox. This vulnerability allows an attacker to modify files outside of the intended extraction directory by crafting a malicious tar archive containing unvalidated hardlink or symlink entries. If the tar archive is extracted with elevated privileges, this flaw can lead to privilege escalation, enabling an attacker to gain unauthorized access to critical system files."}, {"lang": "es", "value": "Se encontr\u00f3 una falla en BusyBox. Esta vulnerabilidad permite a un atacante modificar archivos fuera del directorio de extracci\u00f3n previsto al crear un archivo tar malicioso que contiene entradas de hardlink o symlink no validadas. Si el archivo tar se extrae con privilegios elevados, esta falla puede conducir a una escalada de privilegios, permitiendo a un atacante obtener acceso no autorizado a archivos cr\u00edticos del sistema."}], "lastModified": "2026-06-02T14:16:50.057", "sourceIdentifier": "secalert@redhat.com"}