Execution with Unnecessary Privileges Affecting cifs-utils-devel package, versions <0:7.6-2.el9_8


Severity

Recommended
0.0
high
0
10

Based on AlmaLinux security rating.

Threat Intelligence

EPSS
0.16% (6th percentile)

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  • Snyk IDSNYK-ALMALINUX9-CIFSUTILSDEVEL-17999832
  • published17 Jul 2026
  • disclosed15 Jul 2026

Introduced: 15 Jul 2026

CVE-2026-12505  (opens in a new tab)
CWE-250  (opens in a new tab)

How to fix?

Upgrade AlmaLinux:9 cifs-utils-devel to version 0:7.6-2.el9_8 or higher.
This issue was patched in ALSA-2026:39576.

NVD Description

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

A flaw was found in the cifs-utils package where the cifs.upcall helper fails to securely drop its root privileges before looking up user information inside a user-controlled environment. A local, low privileged attacker can exploit this by using a crafted request_key payload to trick the root-owned helper into entering a custom environment (namespace) containing a malicious NSS module. This forces the system to load the attacker's controlled NSS Module and configuration, allowing them to execute arbitrary commands as the root user, elevating their privileges and fully compromising the system.

CVSS Base Scores

version 3.1