What is the CVSS score of CVE-2025-6087?

CVE-2025-6087 has a CVSS 3.1 base score of 9.1 (Critical). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N. EPSS exploitation probability: 0.4%.

Which versions of Next.js are affected by CVE-2025-6087?

A critical vulnerability in the Open Next Cloudflare adapter allows attackers to abuse your website's domain to serve malicious content or access internal services without authentication.. A patch is available.

How to fix or mitigate CVE-2025-6087?

Within 24 hours: Inventory all production deployments using @opennextjs/cloudflare and assess exposure; disable the /_next/image endpoint if not business-critical. Within 7 days: Implement WAF rules blocking suspicious /_next/image requests with non-standard URL parameters; review access logs for exploitation attempts. Within 30 days: Migrate to a patched version once available or migrate away from the vulnerable package; conduct post-incident review of any potential compromises.

Next.js CVE-2025-6087

EUVD-2025-18433 CRITICAL

Server-Side Request Forgery (SSRF) (CWE-918)

2025-06-16 cna@cloudflare.com

GHSA-c7mq-gh6q-6q7c

GHSA-rvpw-p7vw-wj3m

SSRF Next.js Node.js Information Disclosure Opennext For Cloudflare Create Cloudflare Cloudflare

9.1

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

9.1 CRITICAL

AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

None

Lifecycle Timeline

Patch released

Mar 31, 2026 - 21:13 nvd

Patch available

EUVD ID Assigned

Mar 14, 2026 - 21:59 euvd

EUVD-2025-18433

Analysis Generated

Mar 14, 2026 - 21:59 vuln.today

CVE Published

Jun 16, 2025 - 19:15 nvd

CRITICAL 9.1

DescriptionCVE.org

A Server-Side Request Forgery (SSRF) vulnerability was identified in the @opennextjs/cloudflare package. The vulnerability stems from an unimplemented feature in the Cloudflare adapter for Open Next, which allowed unauthenticated users to proxy arbitrary remote content via the /_next/image endpoint.

This issue allowed attackers to load remote resources from arbitrary hosts under the victim site’s domain for any site deployed using the Cloudflare adapter for Open Next.

For example:

https://victim-site.com/_next/image?url=https://attacker.com

In this example, attacker-controlled content from attacker.com is served through the victim site’s domain (victim-site.com), violating the same-origin policy and potentially misleading users or other services.

Impact:

SSRF via unrestricted remote URL loading
Arbitrary remote content loading
Potential internal service exposure or phishing risks through domain abuse

Mitigation:

The following mitigations have been put in place:

Server side updates to Cloudflare’s platform to restrict the content loaded via the /_next/image endpoint to images. The update automatically mitigates the issue for all existing and any future sites deployed to Cloudflare using the affected version of the Cloudflare adapter for Open Next
Root cause fix https://github.com/opennextjs/opennextjs-cloudflare/pull/727 to the Cloudflare adapter for Open Next. The patched version of the adapter is found here @opennextjs/cloudflare@1.3.0 https://www.npmjs.com/package/@opennextjs/cloudflare/v/1.3.0
Package dependency update https://github.com/cloudflare/workers-sdk/pull/9608 to create-cloudflare (c3) to use the fixed version of the Cloudflare adapter for Open Next. The patched version of create-cloudflare is found here: create-cloudflare@2.49.3 https://www.npmjs.com/package/create-cloudflare/v/2.49.3

In addition to the automatic mitigation deployed on Cloudflare’s platform, we encourage affected users to upgrade to @opennext/cloudflare v1.3.0 and use the remotePatterns https://nextjs.org/docs/pages/api-reference/components/image#remotepatterns filter in Next config https://nextjs.org/docs/pages/api-reference/components/image#remotepatterns if they need to allow-list external urls with images assets.