CVE-2026-64136 Affecting python3-perf package, versions <0:5.14.0-687.45.1.el9_8


Severity

Recommended
high

Based on Oracle Linux security rating.

Threat Intelligence

EPSS
0.49% (41st percentile)

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  • Snyk IDSNYK-ORACLE9-PYTHON3PERF-19668947
  • published10 Sept 2026
  • disclosed19 Jul 2026

Introduced: 19 Jul 2026

CVE-2026-64136  (opens in a new tab)

How to fix?

Upgrade Oracle:9 python3-perf to version 0:5.14.0-687.45.1.el9_8 or higher.
This issue was patched in ELSA-2026-64808-0.

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 Oracle. See How to fix? for Oracle:9 relevant fixed versions and status.

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

smb: client: protect tc_count increment in smb2_find_smb_sess_tcon_unlocked()

Commit 96c4af418586 ("cifs: Fix locking usage for tcon fields") refactored cifs code to change cifs_tcp_ses_lock for tc_lock around tc_count changes.

There was missing lock around tc_count increment inside smb2_find_smb_sess_tcon_unlocked().

CVSS Base Scores

version 3.1