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CVE-2026-27978

Опубликовано: 17 мар. 2026
Источник: redhat
CVSS3: 4.3
EPSS Низкий

Описание

A CSRF check bypass flaw has been discovered in Next.js. The origin: null was treated as a "missing" origin during Server Action CSRF validation. As a result, requests from opaque contexts (such as sandboxed iframes) could bypass origin verification instead of being validated as cross-origin requests. An attacker could induce a victim browser to submit Server Actions from a sandboxed context, potentially executing state-changing actions with victim credentials (CSRF).

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 9dotnet7.0Fix deferred
Red Hat Enterprise Linux AI (RHEL AI) 3rhelai3/bootc-cuda-rhel9Fix deferred
Red Hat Enterprise Linux AI (RHEL AI) 3rhelai3/bootc-rocm-rhel9Fix deferred
Red Hat Enterprise Linux AI (RHEL AI) 3rhelai3/disk-image-cuda-rhel9Fix deferred
Red Hat Trusted Artifact Signerrhtas/rekor-search-ui-rhel9Fix deferred
streams for Apache Kafka 2com.github.streamshub-consoleFix deferred
streams for Apache Kafka 3com.github.streamshub-consoleFix deferred

Показывать по

Дополнительная информация

Статус:

Moderate
Дефект:
CWE-346
https://bugzilla.redhat.com/show_bug.cgi?id=2448513next.js: Next.js: null origin can bypass Server Actions CSRF checks

EPSS

Процентиль: 0%
0.00006
Низкий

4.3 Medium

CVSS3

Связанные уязвимости

CVSS3: 4.3
nvd
8 дней назад

Next.js is a React framework for building full-stack web applications. Starting in version 16.0.1 and prior to version 16.1.7, `origin: null` was treated as a "missing" origin during Server Action CSRF validation. As a result, requests from opaque contexts (such as sandboxed iframes) could bypass origin verification instead of being validated as cross-origin requests. An attacker could induce a victim browser to submit Server Actions from a sandboxed context, potentially executing state-changing actions with victim credentials (CSRF). This is fixed in version 16.1.7 by treating `'null'` as an explicit origin value and enforcing host/origin checks unless `'null'` is explicitly allowlisted in `experimental.serverActions.allowedOrigins`. If upgrading is not immediately possible, add CSRF tokens for sensitive Server Actions, prefer `SameSite=Strict` on sensitive auth cookies, and/or do not allow `'null'` in `serverActions.allowedOrigins` unless intentionally required and additionally prote

github
8 дней назад

Next.js: null origin can bypass Server Actions CSRF checks

EPSS

Процентиль: 0%
0.00006
Низкий

4.3 Medium

CVSS3