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{"acknowledgement": "Red Hat would like to thank Adam Simuntis / adamm <a.simuntis@gmail.com> for reporting this issue.", "bugzilla": {"description": "dnf5: dnf5daemon-server: dnf5daemon-server: unauthenticated privileged cmdline package fetch/open via add_cmdline_packages", "id": "2567426", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2567426"}, "csaw": false, "cvss3": {"cvss3_base_score": "8.4", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:H", "status": "draft"}, "cwe": "CWE-862", "details": ["A flaw was found in dnf5daemon-server. Unauthenticated D-Bus methods pass caller-controlled URL or .rpm path patterns into a root-privileged cmdline package loader that may store fetched content in a world-readable cache without size limits, or open local paths as root, allowing a local attacker to disclose privileged content and to deny service via disk exhaustion."], "mitigation": {"lang": "en:us", "value": "Until a fixed package is available, remove or disable dnf5daemon-server if GNOME Software / dnf5daemon-client is not required, or restrict system D-Bus access to org.rpm.dnf.v0 to trusted users. If non-root access to instance metadata is already blocked on a cloud host, also ensure the daemon cannot be used as a bypass, or disable the daemon. If exploitation cannot be ruled out, rotate exposed secrets (SSH host keys, service credentials, cloud role credentials where applicable) in addition to clearing /var/cache/dnf5daemon-server."}, "name": "CVE-2026-123177", "package_state": [{"cpe": "cpe:/a:redhat:hummingbird:1", "fix_state": "Affected", "impact": "important", "package_name": "dnf5", "product_name": "Red Hat Hardened Images"}], "public_date": "2026-11-13T12:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-123177\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-123177"], "statement": "Red Hat Enterprise Linux is not affected: supported RHEL content does not ship dnf5daemon-server.", "threat_severity": "Important"}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": null}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "Red Hat Hardened Images", "source": "cna", "vendor": "Red Hat"}, "product": "hardened_images", "vendor": "redhat"}, {"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "1"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "product": "hummingbird", "vendor": "redhat"}], "created": "2026-11-14T05:45:01.914680+00:00", "updated": "2026-11-15T04:45:06.303269+00:00", "vendors": ["redhat", "redhat$PRODUCT$hardened_images", "redhat$PRODUCT$hummingbird"]}