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CVE-2026-6019

Опубликовано: 22 апр. 2026
Источник: redhat
CVSS3: 6.8

Описание

http.cookies.Morsel.js_output() returns an inline inside the generated script element. Mitigation base64-encodes the cookie value to disallow escaping using cookie value.

A flaw was found in Python's http.cookies module. The Morsel.js_output() function, responsible for generating JavaScript output for cookies, does not properly neutralize the </script> HTML sequence. This oversight could allow a remote attacker to inject malicious script into a web page, potentially leading to Cross-Site Scripting (XSS) attacks. Such an attack could result in information disclosure or arbitrary code execution within the user's browser.

Меры по смягчению последствий

Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability.

Затронутые пакеты

ПлатформаПакетСостояниеРекомендацияРелиз
Red Hat Enterprise Linux 10python3.12Fix deferred
Red Hat Enterprise Linux 6pythonFix deferred
Red Hat Enterprise Linux 7pythonFix deferred
Red Hat Enterprise Linux 7python3Fix deferred
Red Hat Enterprise Linux 8python3Fix deferred
Red Hat Enterprise Linux 8python3.11Fix deferred
Red Hat Enterprise Linux 8python3.12Fix deferred
Red Hat Enterprise Linux 8python36:3.6/python36Fix deferred
Red Hat Enterprise Linux 8python39-devel:3.9/python39Fix deferred
Red Hat Enterprise Linux 9python3.11Fix deferred

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Дополнительная информация

Статус:

Moderate
Дефект:
CWE-79
https://bugzilla.redhat.com/show_bug.cgi?id=2460869python: Python: Cross-Site Scripting (XSS) vulnerability in http.cookies module

6.8 Medium

CVSS3

Связанные уязвимости

CVSS3: 6.1
ubuntu
3 месяца назад

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.

CVSS3: 6.1
nvd
3 месяца назад

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.

msrc
3 месяца назад

BaseCookie.js_output() does not neutralize embedded characters

CVSS3: 6.1
debian
3 месяца назад

http.cookies.Morsel.js_output() returns an inline <script> snippet and ...

CVSS3: 6.1
github
3 месяца назад

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.

6.8 Medium

CVSS3