CVE-2026-15060

Summary

When systemd-machined >= v259 (or v258 with a custom polkit policy that allows register-machine access) is running on a desktop system, an unprivileged user logged in a desktop graphical session can kill arbitrary processes, even privileged ones.

• versions older than v259 are not affected, unless unprivileged access is granted for the register-machine polkit action via a local, custom policy config file
• versions older than v258 are not affected
• unrelated to the systemd service manager (pid 1 or user session managers)
• systemd-machined is not typically installed by default, and is typically in an optional, separate package (e.g.: systemd-container)
• terminal-only or remote sessions (e.g.: ssh) are not affected

Affected Software

Weaknesses

• CWE-284: CWE-284
• CWE-862: CWE-862

ADP Enrichment

CISA ADP Vulnrichment

• SSVC:
• Exploitation: none
  • Automatable: no
  • Technical Impact: partial

References

• https://github.com/systemd/systemd/security/advisories/GHSA-qwv4-3gwc-w5g8

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