CVE-2026-48750

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{"bugzilla": {"description": "incus: Incus has an arbitrary file write on host via `exec-output` symlink in crafted image", "id": "2521003", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2521003"}, "csaw": false, "cvss3": {"cvss3_base_score": "9.9", "cvss3_scoring_vector": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H", "status": "draft"}, "cwe": "CWE-61", "details": ["Incus is a system container and virtual machine manager. Prior to version 7.2.0, the `record-output` parameter of the `/instances/$name/exec` endpoint stores the output of the command in the `exec-output` directory of the instance. If `exec-output` is a symlink, file named `exec_UUID.stdout` and `exec_UUID.stderr` can be written to an arbitrary location where the `.stdout` file will contain arbitrary content. This behavior can be abused for arbitrary command execution. Version 7.2.0 contains a patch.", "A flaw was found in Incus, a container and virtual machine manager. A crafted container image can cause the host to write files to arbitrary locations via a symlink, potentially leading to command execution as root on the host."], "mitigation": {"lang": "en:us", "value": "No mitigation is needed as Incus is not shipped in any Red Hat product."}, "name": "CVE-2026-48750", "public_date": "2026-08-21T14:19:45Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-48750\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-48750\nhttps://github.com/lxc/incus/security/advisories/GHSA-73hr-m85f-64v9"], "statement": "Incus is not shipped in any Red Hat product. The community Fedora package is affected.", "threat_severity": "Critical"}

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