Improper Privilege Management Affecting systemd-rpm-macros package, versions <0:252-55.el9_7.9.alma.1


Severity

Recommended
medium

Based on AlmaLinux security rating.

Threat Intelligence

EPSS
0.13% (3rd percentile)

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  • Snyk IDSNYK-ALMALINUX9-SYSTEMDRPMMACROS-16427288
  • published6 May 2026
  • disclosed5 May 2026

Introduced: 5 May 2026

CVE-2026-29111  (opens in a new tab)
CWE-269  (opens in a new tab)

How to fix?

Upgrade AlmaLinux:9 systemd-rpm-macros to version 0:252-55.el9_7.9.alma.1 or higher.
This issue was patched in ALSA-2026:13677.

NVD Description

Note: Versions mentioned in the description apply only to the upstream systemd-rpm-macros package and not the systemd-rpm-macros package as distributed by AlmaLinux. See How to fix? for AlmaLinux:9 relevant fixed versions and status.

systemd, a system and service manager, (as PID 1) hits an assert and freezes execution when an unprivileged IPC API call is made with spurious data. On version v249 and older the effect is not an assert, but stack overwriting, with the attacker controlled content. From version v250 and newer this is not possible as the safety check causes an assert instead. This IPC call was added in v239, so versions older than that are not affected. Versions 260-rc1, 259.2, 258.5, and 257.11 contain patches. No known workarounds are available.

CVSS Base Scores

version 3.1