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CVE-2025-12543

Опубликовано: 07 янв. 2026
Источник: debian
EPSS Низкий

Описание

A flaw was found in the Undertow HTTP server core, which is used in WildFly, JBoss EAP, and other Java applications. The Undertow library fails to properly validate the Host header in incoming HTTP requests.As a result, requests containing malformed or malicious Host headers are processed without rejection, enabling attackers to poison caches, perform internal network scans, or hijack user sessions.

Пакеты

ПакетСтатусВерсия исправленияРелизТип
undertowunfixedpackage

Примечания

  • https://bugzilla.redhat.com/show_bug.cgi?id=2408784

EPSS

Процентиль: 64%
0.01179
Низкий

Связанные уязвимости

CVSS3: 9.6
ubuntu
7 месяцев назад

A flaw was found in the Undertow HTTP server core, which is used in WildFly, JBoss EAP, and other Java applications. The Undertow library fails to properly validate the Host header in incoming HTTP requests.As a result, requests containing malformed or malicious Host headers are processed without rejection, enabling attackers to poison caches, perform internal network scans, or hijack user sessions.

CVSS3: 9.6
redhat
7 месяцев назад

A flaw was found in the Undertow HTTP server core, which is used in WildFly, JBoss EAP, and other Java applications. The Undertow library fails to properly validate the Host header in incoming HTTP requests.As a result, requests containing malformed or malicious Host headers are processed without rejection, enabling attackers to poison caches, perform internal network scans, or hijack user sessions.

CVSS3: 9.6
nvd
7 месяцев назад

A flaw was found in the Undertow HTTP server core, which is used in WildFly, JBoss EAP, and other Java applications. The Undertow library fails to properly validate the Host header in incoming HTTP requests.As a result, requests containing malformed or malicious Host headers are processed without rejection, enabling attackers to poison caches, perform internal network scans, or hijack user sessions.

CVSS3: 9.6
github
7 месяцев назад

Undertow HTTP server core doesn't properly validate the Host header in incoming HTTP requests

CVSS3: 9.6
fstec
7 месяцев назад

Уязвимость ядра HTTP-сервера Undertow, связанная с ошибками механизма проверки входных данных при обработке заголовков Host, позволяющая нарушителю осуществить SSRF-атаку

EPSS

Процентиль: 64%
0.01179
Низкий