Incomplete Filtering of Special Elements Affecting python3.14-freethreading-devel package, versions <0:3.14.4-2.el9_8


Severity

Recommended
high

Based on CentOS security rating.

Threat Intelligence

EPSS
0.06% (20th percentile)

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  • Snyk IDSNYK-CENTOS9-PYTHON314FREETHREADINGDEVEL-16776180
  • published20 May 2026
  • disclosed16 Mar 2026

Introduced: 16 Mar 2026

CVE-2026-3644  (opens in a new tab)
CWE-791  (opens in a new tab)

How to fix?

Upgrade Centos:9 python3.14-freethreading-devel to version 0:3.14.4-2.el9_8 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream python3.14-freethreading-devel package and not the python3.14-freethreading-devel package as distributed by Centos. See How to fix? for Centos:9 relevant fixed versions and status.

The fix for CVE-2026-0672, which rejected control characters in http.cookies.Morsel, was incomplete. The Morsel.update(), |= operator, and unpickling paths were not patched, allowing control characters to bypass input validation. Additionally, BaseCookie.js_output() lacked the output validation applied to BaseCookie.output().

CVSS Base Scores

version 3.1