Bug 2513490 (CVE-2026-16742)

Summary: CVE-2026-16742 systemd: systemd-homed: Local privilege escalation via missing home-record signature verification
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security <prodsec-ir-bot>
Status: NEW --- QA Contact:
Severity: high Docs Contact:
Priority: high    
Version: unspecifiedCC: akhatavk, aos-team-art-private, asdas, dpaolell, jdelft, jupierce, lgarciaa, mbiarnes, ppalepu, ppostler, prdhamdh, rhel-process-autobot, sghai, sidsharm, suppawar, vlaad, watson-tool-maintainers
Target Milestone: ---Keywords: Security
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Hardware: All   
OS: Linux   
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A flaw was found in systemd-homed. A local, logged-in user can exploit a missing signature verification in the authentication path when processing home records. This vulnerability allows the user to add arbitrary system groups to their account, which can lead to local privilege escalation and enable them to gain elevated access on the system.
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
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Description OSIDB Bzimport 2026-08-10 13:41:36 UTC
systemd-homed contains a local privilege escalation bug via arbitrary system group addition to a local, logged in, homed-managed user