CVE-2026-31692 Affecting perf package, versions <0:4.18.0-553.150.1.el8_10


Severity

Recommended
high

Based on AlmaLinux security rating.

Threat Intelligence

EPSS
0.12% (3rd percentile)

Do your applications use this vulnerable package?

In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.

Test your applications
  • Snyk IDSNYK-ALMALINUX8-PERF-18511100
  • published3 Aug 2026
  • disclosed24 Jul 2026

Introduced: 24 Jul 2026

NewCVE-2026-31692  (opens in a new tab)

How to fix?

Upgrade AlmaLinux:8 perf to version 0:4.18.0-553.150.1.el8_10 or higher.
This issue was patched in ALSA-2026:49214.

NVD Description

Note: Versions mentioned in the description apply only to the upstream perf package and not the perf package as distributed by AlmaLinux. See How to fix? for AlmaLinux:8 relevant fixed versions and status.

In the Linux kernel, the following vulnerability has been resolved:

rtnetlink: add missing netlink_ns_capable() check for peer netns

rtnl_newlink() lacks a CAP_NET_ADMIN capability check on the peer network namespace when creating paired devices (veth, vxcan, netkit). This allows an unprivileged user with a user namespace to create interfaces in arbitrary network namespaces, including init_net.

Add a netlink_ns_capable() check for CAP_NET_ADMIN in the peer namespace before allowing device creation to proceed.

CVSS Base Scores

version 3.1