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GHSA-fccg-7w3p-w66f

Опубликовано: 16 янв. 2026
Источник: github
Github: Прошло ревью
CVSS4: 5.5

Описание

Nu Html Checker (vnu) contains a Server-Side Request Forgery (SSRF) vulnerability

Nu Html Checker (validator.nu) contains a restriction bypass that allows remote attackers to make the server perform arbitrary HTTP/HTTPS requests to internal resources, including localhost services. While the validator implements hostname-based protections to block direct access to localhost and 127.0.0.1, these controls can be bypassed using DNS rebinding techniques or domains that resolve to loopback addresses.This issue affects The Nu Html Checker (vnu): latest (commit 23f090a11bab8d0d4e698f1ffc197a4fe226a9cd).

Пакеты

Наименование

nu.validator:validator

maven
Затронутые версииВерсия исправления

<= 26.1.11

Отсутствует

Наименование

vnu-jar

npm
Затронутые версииВерсия исправления

<= 26.1.11

Отсутствует

EPSS

Процентиль: 17%
0.00054
Низкий

5.5 Medium

CVSS4

Дефекты

CWE-918

Связанные уязвимости

CVSS3: 5.3
nvd
22 дня назад

Nu Html Checker (validator.nu) contains a restriction bypass that allows remote attackers to make the server perform arbitrary HTTP/HTTPS requests to internal resources, including localhost services. While the validator implements hostname-based protections to block direct access to localhost and 127.0.0.1, these controls can be bypassed using DNS rebinding techniques or domains that resolve to loopback addresses.This issue affects The Nu Html Checker (vnu): latest (commit 23f090a11bab8d0d4e698f1ffc197a4fe226a9cd).

CVSS3: 5.3
debian
22 дня назад

Nu Html Checker (validator.nu) contains a restriction bypass that allo ...

EPSS

Процентиль: 17%
0.00054
Низкий

5.5 Medium

CVSS4

Дефекты

CWE-918