CVE-2026-53189 Affecting python3-perf package, versions <0:5.14.0-687.41.1.el9_8


Severity

Recommended
high

Based on AlmaLinux security rating.

Threat Intelligence

EPSS
0.13% (3rd percentile)

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  • Snyk IDSNYK-ALMALINUX9-PYTHON3PERF-19277912
  • published27 Aug 2026
  • disclosed20 Aug 2026

Introduced: 20 Aug 2026

NewCVE-2026-53189  (opens in a new tab)

How to fix?

Upgrade AlmaLinux:9 python3-perf to version 0:5.14.0-687.41.1.el9_8 or higher.
This issue was patched in ALSA-2026:57252.

NVD Description

Note: Versions mentioned in the description apply only to the upstream python3-perf package and not the python3-perf package as distributed by AlmaLinux. See How to fix? for AlmaLinux:9 relevant fixed versions and status.

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

mm/huge_memory: update file PMD counter before folio_put()

__split_huge_pmd_locked() updates the file/shmem RSS counter after dropping the PMD mapping's folio reference. If folio_put() drops the last reference, mm_counter_file() can later read freed folio state via folio_test_swapbacked().

Move the counter update before folio_put().

CVSS Base Scores

version 3.1