OpenNext for Cloudflare (opennextjs-cloudflare) has a SSRF vulnerability via /_next/image endpoint

Exploitation

No confirmed exploitation recorded. Patch Next marks exploitation only from CISA KEV.

CVSS 4.0

7.7 · CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:H/SI:N/SA:N · score source

EPSS

• CVE-2025-6087: 0.97% estimated exploitation activity in the next 30 days; percentile 61.85 (FIRST EPSS, 2026-11-03). This is a model estimate, not proof of exploitation or customer exposure.
• CVE-2026-3125: 0.40% estimated exploitation activity in the next 30 days; percentile 34.34 (FIRST EPSS, 2026-11-03). This is a model estimate, not proof of exploitation or customer exposure.

As published by the source; long descriptions are shortened.

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:…

Published by the source

5 Mar 2026, 00:57 UTC

Last modified by the source

16 Mar 2026, 03:05 UTC

Source last checked

24 Oct 2026, 22:39 UTC

1. Revision 3 · amended · 24 Oct 2026

   Reviewed OSV alias/range/CVSS4 correction; package source scopes and original publication preserved. No customer finding resolved.

2. Revision 2 · amended · 24 Oct 2026

   Amended from osv record GHSA-rvpw-p7vw-wj3m

3. Revision 1 · created · 24 Oct 2026

   Published from osv record GHSA-c7mq-gh6q-6q7c

Preview the exact text before you copy it. Commands are read-only suggestions; review them before running anything.

# Patch Next advisory brief: CVE-2025-6087

Advisory: OpenNext for Cloudflare (opennextjs-cloudflare) has a SSRF vulnerability via /_next/image endpoint
IDs: CVE-2025-6087, GHSA-c7mq-gh6q-6q7c
Record: https://patchnext.com/advisories/cve-2025-6087 (revision 3, source checked 24 Oct 2026, 22:39 UTC)
Inventory: none attached. This brief comes from a public page and does not say whether any deployment is affected.
Severity: High (CVSS 7.7)
Exploitation: no confirmed exploitation recorded. Patch Next confirms exploitation only from CISA KEV.
Vendor response: Vendor fix available; fixed versions by package: @opennextjs/cloudflare 1.3.0. A vendor fix does not mean a deployment is fixed.

## Affected components
- npm @opennextjs/cloudflare: affected < 1.3.0; fixed in 1.3.0

## Suggested inspection (read-only)
- `npm ls @opennextjs/cloudflare --all`: lists every installed copy and version, including transitive ones. Run in the project root after `npm ci`.

## Supported action
Upgrade each affected component to a fixed version on its release line. For a transitive dependency, upgrade the parent package or add an override or constraint, then regenerate the lockfile. Redeploy every environment that ran an affected version.

## Required regression checks
- Run the test suite and a production build.
- Exercise the features that depend on @opennextjs/cloudflare.
- Repeat the inspection and confirm that only fixed versions remain installed.

## Rollback considerations
- Keep the previous lockfile and deployment artifact. Rolling back reinstates the vulnerable version, so apply any documented mitigation while you fix forward.

## Unresolved questions
- Which deployments run an affected version?
- Exploitation status can change. Check again before lowering the priority.
- Mark the work resolved only after the fixed version is verified in production.

## Sources
- Verified: https://osv.dev/vulnerability/GHSA-c7mq-gh6q-6q7c (OSV record GHSA-c7mq-gh6q-6q7c lists affected ranges: npm @opennextjs/cloudflare >=0 <1.17.1 (fixed))
- Verified: https://osv.dev/vulnerability/GHSA-rvpw-p7vw-wj3m (OSV record GHSA-rvpw-p7vw-wj3m lists affected ranges: npm @opennextjs/cloudflare >=0 <1.3.0 (fixed))

Commands are suggestions: review each one before running it.