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CVE-2026-64647

Опубликовано: 27 июл. 2026
Источник: redhat
CVSS3: 3.7

Описание

A flaw was found in Next.js. This vulnerability allows a remote attacker to potentially access confidential data. When a server-side fetch processes a request with a body using a non-UTF-8 character set, it may incorrectly return a cached response body from a different request to the same URL but different body. This can lead to the unauthorized disclosure of sensitive information.

Отчет

This Low impact information disclosure flaw affects Next.js applications where server-side fetches handle request bodies with non-UTF-8 charsets. Under these specific conditions, cached responses containing confidential data could be inadvertently exposed to unauthorized requests.

Затронутые пакеты

ПлатформаПакетСостояниеРекомендацияРелиз
Red Hat Enterprise Linux 10firefoxFix deferred
Red Hat Enterprise Linux 10thunderbirdFix deferred
Red Hat Enterprise Linux 7firefoxFix deferred
Red Hat Enterprise Linux 8firefoxFix deferred
Red Hat Enterprise Linux 8thunderbirdFix deferred
Red Hat Enterprise Linux 9firefoxFix deferred
Red Hat Enterprise Linux 9thunderbirdFix deferred
Red Hat Enterprise Linux AI (RHEL AI) 3rhelai3/bootc-cuda-rhel9Fix deferred
Red Hat Enterprise Linux AI (RHEL AI) 3rhelai3/bootc-gaudi-rhel9Fix deferred
Red Hat Enterprise Linux AI (RHEL AI) 3rhelai3/bootc-rocm-rhel9Fix deferred

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Дополнительная информация

Статус:

Low
Дефект:
CWE-524
https://bugzilla.redhat.com/show_bug.cgi?id=2507640next: Next.js: Information disclosure via server-side request caching

3.7 Low

CVSS3

Связанные уязвимости

CVSS3: 5.4
nvd
5 дней назад

Next.js is a React framework for building full-stack web applications. In versions 12.0.0 through 15.5.20 and 16.0.0 through 16.2.10, a server-side fetch with a request body may return a cached response body from a different request to the same URL but different body. Confidential data in the POST's response body would then leak to unauthorized requests. Though the request itself will not be deduped. This is only an issue when receiving request bodies with a content type charset other than UTF-8. For example, the UTF-16 byte sequences for 삃삃 and 섄섄 in the request body would share the same cache. This issue has been fixed in versions 15.5.21 and 16.2.11.

github
10 дней назад

Next.js: Cache confusion of response bodies for requests with bodies containing invalid UTF-8 byte sequences

3.7 Low

CVSS3