CVE-2026-115375

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{"bugzilla": {"description": "github.com/lxc/incus: Incus 7.0.0 before 7.0.2 and 7.1.0 before 7.5.0 Path Traversal via Instance Backup Dependent Volumes", "id": "2559299", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2559299"}, "csaw": false, "cvss3": {"cvss3_base_score": "8.5", "cvss3_scoring_vector": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H", "status": "draft"}, "cwe": "CWE-22", "details": ["Incus 7.0.0 before 7.0.2 and 7.1.0 before 7.5.0 contains a path traversal vulnerability that allows clients able to create instances to write files on the host. The flaw stems from unvalidated dependent custom volume names in instance backup index.yaml files. Attackers can import a crafted instance backup with ../ sequences in dependent volume names to create root-owned directories with controlled content, leading to full host compromise.", "A flaw was found in Incus. An authenticated user with instance creation privileges can exploit a path traversal vulnerability by importing a crafted instance backup archive containing directory traversal sequences in dependent volume names. Successful exploitation allows the attacker to escape container boundaries and write arbitrary files to the host filesystem with root privileges, leading to full host compromise."], "name": "CVE-2026-115375", "public_date": "2026-10-22T19:13:44Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-115375\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-115375\nhttps://github.com/lxc/incus/security/advisories/GHSA-hpjh-q53p-f27r\nhttps://www.vulncheck.com/advisories/incus-7.0.0-before-7.0.2-and-7.1.0-before-7.5.0-path-traversal-via-instance-backup-dependent-volumes"], "statement": "This vulnerability is rated as Important rather than Moderate because successful exploitation permits an authenticated client to escape container boundaries and compromise the underlying host system with elevated privileges. To exploit the directory traversal during archive restoration, an attacker must possess valid authorization granting instance provisioning privileges, preventing exposure from unauthenticated remote users. Red Hat Enterprise Linux does not distribute or support Incus, so default enterprise environments do not run this software.", "threat_severity": "Important"}

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