CVE-2026-123177

HIGH 8.4

Dnf5: dnf5daemon-server: dnf5daemon-server: unauthenticated privileged cmdline package fetch/open via add_cmdline_packages

CVSS Score

8.4

EPSS Score

0.0%

EPSS Percentile

0th

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.

CWE	CWE-862
Vendor	red hat
Product	red hat hardened images
Published	Nov 13, 2026

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CVSS v3 Breakdown

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:H

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Changed

Confidentiality

High

Integrity

None

Availability

High

Affected Versions

Red Hat / Red Hat Hardened Images

All versions affected

References

NVD ↗ CVE.org ↗ EPSS Data ↗

access.redhat.com: https://access.redhat.com/security/cve/CVE-2026-123177 bugzilla.redhat.com: https://bugzilla.redhat.com/show_bug.cgi?id=2567426

Credits

Red Hat would like to thank Adam Simuntis / adamm <[email protected]> for reporting this issue.