Cross-site Scripting (XSS) Affecting python3.14-freethreading-libs package, versions <0:3.14.5-1.el10_2


Severity

Recommended
0.0
medium
0
10

Based on CentOS security rating.

Threat Intelligence

EPSS
0.21% (11th percentile)

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  • Snyk IDSNYK-CENTOS10-PYTHON314FREETHREADINGLIBS-17293844
  • published11 Jun 2026
  • disclosed22 Apr 2026

Introduced: 22 Apr 2026

CVE-2026-6019  (opens in a new tab)
CWE-79  (opens in a new tab)

How to fix?

Upgrade Centos:10 python3.14-freethreading-libs to version 0:3.14.5-1.el10_2 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream python3.14-freethreading-libs package and not the python3.14-freethreading-libs package as distributed by Centos. See How to fix? for Centos:10 relevant fixed versions and status.

http.cookies.Morsel.js_output() returns an inline <script> snippet and only escapes " for JavaScript string context. It does not neutralize the HTML parser-sensitive sequence </script> inside the generated script element. Mitigation base64-encodes the cookie value to disallow escaping using cookie value.

CVSS Base Scores

version 3.1