systemd-homed: local privilege escalation via missing home-record signature verification on the authenticate path

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-16742
StatePUBLISHED
Assignersystemd
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-08-10 14:17:21 UTC
Updated2026-08-10 16:19:29 UTC
Descriptionsystemd-homed contains a local privilege escalation bug via arbitrary system group addition to a local, logged in, homed-managed user

Risk And Classification

Primary CVSS: v3.1 6.7 MEDIUM from 98a521c5-3a3e-4e2b-bc27-002067e0463c

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

EPSS: 0.000570000 probability, percentile 0.000060000 (date 2026-08-11)

Problem Types: CWE-269 | CWE-347 | CWE-347 CWE-347 Improper Verification of Cryptographic Signature | CWE-269 CWE-269 Improper Privilege Management

VersionSourceTypeScoreSeverityVector
3.198a521c5-3a3e-4e2b-bc27-002067e0463cSecondary6.7MEDIUMCVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:H
3.1CNACVSS6.7MEDIUMCVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:H

CVSS v3.1 Breakdown

Attack Vector
Local
Attack Complexity
High
Privileges Required
Low
User Interaction
Required
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

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

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Systemd Systemd-homed affected 245 262, 261.2, 260.4, 259.8, 258.10 custom Linux

References

ReferenceSourceLinkTags
github.com/systemd/systemd/security/advisories/GHSA-jm29-p7hh-vjhv 98a521c5-3a3e-4e2b-bc27-002067e0463c github.com
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