{"affected":[{"defaultStatus":"affected","ecosystem":"https://access.redhat.com/downloads/content/package-browser/","packageName":"dnf5","product":"Red Hat Hardened Images","source":"CNA: redhat","vendor":"Red Hat","versions":[]}],"cveId":"CVE-2026-123177","cwes":["CWE-862"],"description":"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.","epss":null,"exploits":[],"kev":null,"metrics":[{"score":8.4,"severity":"high","source":"CNA: redhat","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:H","version":"3.1"}],"modifiedAt":1794590897162,"publishedAt":1794590897162,"references":[{"source":"CNA: redhat","tags":["vdb-entry","x_refsource_REDHAT"],"url":"https://access.redhat.com/security/cve/CVE-2026-123177"},{"source":"CNA: redhat","tags":["issue-tracking","x_refsource_REDHAT"],"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2567426"}],"remediation":[{"kind":"workaround","source":"CNA: redhat","text":"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."}],"revision":"71f99768870f3408d517c4b629a80029385334585940c2efec47d7e1295f74be","sources":[{"modifiedAt":1794590897162,"name":"CNA: redhat","retrievedAt":1794593331785,"url":"https://www.cve.org/CVERecord?id=CVE-2026-123177"}],"ssvc":null,"status":"published","title":"Dnf5: dnf5daemon-server: dnf5daemon-server: unauthenticated privileged cmdline package fetch/open via add_cmdline_packages","updatedAt":1794593331785}